//Feedback form

function check_feedback(chk)
{
		var contact_name  = trim(chk.contact_name.value);
		var company  	  = trim(chk.company.value);
		var phone 		  = trim(chk.phone.value);
		var email		  = trim(chk.email.value);
		var feedback	  = trim(chk.feedback.value);
		
		if(contact_name == "")
		 {
			alert("Please enter your name.");
			chk.contact_name.focus();
			return false;
		}
		if(isNotAlphabets(contact_name))
		 {
			alert("Invalid characters in name.");
			chk.contact_name.focus();
			return false;		  
		 }
		 
		if(company == "")
		{
			alert("Please enter your company name.");
			chk.company.focus();
			return false;
		}
		 
		 if(phone == "")
		 {
			alert("Please enter your phone number.");
			chk.phone.focus();
			return false;
		 }
		 				
		 if(isNotNumeric(phone))
		 {
			alert("Invalid characters in phone number.");
			chk.phone.focus();
			return false;		  
		 }
		 if(phone.length<7)
		 {
			alert("Phone number can not be less than 7 digits.");
			chk.phone.focus();
			return false;		  
		 }		 
		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }
		 
		 if(feedback == "")
		 {
			alert("Please enter your feedback.");
			chk.feedback.focus();
			return false;
		 }
		 
		 		 
		  if(feedback.length > 1500)
		  {
		       alert("Feedback field can not contain more than 1500 characters");
			   chk.feedback.focus();
			   return false;
		  }
}				 
//Quick Question form Giyas May 23, 2008 
function check_quick_question(chk)
{
		var contact_name  = trim(chk.contact_name.value);
		var phone 		  = trim(chk.phone.value);
		var email		  = trim(chk.email.value);
		var feedback	  = trim(chk.feedback.value);
		
		if(contact_name == "")
		 {
			alert("Please enter your name.");
			chk.contact_name.focus();
			return false;
		}
		if(isNotAlphabets(contact_name))
		 {
			alert("Invalid characters in name.");
			chk.contact_name.focus();
			return false;		  
		 }
		 if(phone == "")
		 {
			alert("Please enter your phone number.");
			chk.phone.focus();
			return false;
		 }
		 				
		 if(isNotNumeric(phone))
		 {
			alert("Invalid characters in phone number.");
			chk.phone.focus();
			return false;		  
		 }
		 if(phone.length<7)
		 {
			alert("Phone number can not be less than 7 digits.");
			chk.phone.focus();
			return false;		  
		 }		 
		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }
		 
		 if(feedback == "")
		 {
			alert("Please enter \"How can we help?\"");
			chk.feedback.focus();
			return false;
		 }
		 
		 		 
		  if(feedback.length > 1500)
		  {
		       alert("\"How can we help?\" field can not contain more than 1500 characters");
			   chk.feedback.focus();
			   return false;
		  }
}				 

//Tech Support form
function check_tech_support(chk)
{
		var engine_serial = trim(chk.engine_serial.value);
		var contact_name  = trim(chk.contact_name.value);
		var company  	  = trim(chk.company.value);
		var phone 		  = trim(chk.phone.value);
		var email		  = trim(chk.email.value);
		var description	  = trim(chk.description.value);

		if(engine_serial == "")
		 {
			alert("Please enter engine serial number.");
			chk.engine_serial.focus();
			return false;
		}
				
		if(contact_name == "")
		 {
			alert("Please enter your name.");
			chk.contact_name.focus();
			return false;
		}
		if(isNotAlphabets(contact_name))
		 {
			alert("Invalid characters in name.");
			chk.contact_name.focus();
			return false;		  
		 }
		 
		if(company == "")
		{
			alert("Please enter your company name.");
			chk.company.focus();
			return false;
		}
		 
		 if(phone == "")
		 {
			alert("Please enter your phone number.");
			chk.phone.focus();
			return false;
		 }
		 				
		 if(isNotNumeric(phone))
		 {
			alert("Invalid characters in phone number.");
			chk.phone.focus();
			return false;		  
		 }
		 if(phone.length<7)
		 {
			alert("Phone number can not be less than 7 digits.");
			chk.phone.focus();
			return false;		  
		 }		 
		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }
		 
		 if(description == "")
		 {
			alert("Please enter your description.");
			chk.description.focus();
			return false;
		 }
		 
		 		 
		  if(description.length > 2000)
		  {
		       alert("Description field can not contain more than 2000 characters");
			   chk.description.focus();
			   return false;
		  }
}				 

//Check brochure request form
function check_brochure_frm(chk)
{
		var contact_name  = trim(chk.contact_name.value);
		var company  	  = trim(chk.company.value);
		var phone 		  = trim(chk.phone.value);
		var email		  = trim(chk.email.value);
		var description	  = trim(chk.description.value);
				
		if(contact_name == "")
		 {
			alert("Please enter your name.");
			chk.contact_name.focus();
			return false;
		}
		if(isNotAlphabets(contact_name))
		 {
			alert("Invalid characters in name.");
			chk.contact_name.focus();
			return false;		  
		 }
		 
		if(company == "")
		{
			alert("Please enter your company name.");
			chk.company.focus();
			return false;
		}
		 
		 if(phone == "")
		 {
			alert("Please enter your phone number.");
			chk.phone.focus();
			return false;
		 }
		 				
		 if(isNotNumeric(phone))
		 {
			alert("Invalid characters in phone number.");
			chk.phone.focus();
			return false;		  
		 }
		 if(phone.length<7)
		 {
			alert("Phone number can not be less than 7 digits.");
			chk.phone.focus();
			return false;		  
		 }		 
		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }
		 
		 if(description == "")
		 {
			alert("Please enter your description.");
			chk.description.focus();
			return false;
		 }
		 
		 		 
		  if(description.length > 2000)
		  {
		       alert("Description field can not contain more than 2000 characters");
			   chk.description.focus();
			   return false;
		  }

		
}

//Check CD request form
function check_cd_request(chk)
{
		var contact_name  = trim(chk.contact_name.value);
		var company  	  = trim(chk.company.value);
		var phone 		  = trim(chk.phone.value);
		var email		  = trim(chk.email.value);
		var address	  	  = trim(chk.address.value);
		var city	  	  = trim(chk.city.value);
		var state	  	  = trim(chk.state.value);
		var zip		  	  = trim(chk.zip.value);
				
		if(contact_name == "")
		 {
			alert("Please enter your name.");
			chk.contact_name.focus();
			return false;
		}
		if(isNotAlphabets(contact_name))
		 {
			alert("Invalid characters in name.");
			chk.contact_name.focus();
			return false;		  
		 }
		 
		if(company == "")
		{
			alert("Please enter your company name.");
			chk.company.focus();
			return false;
		}

		if(address == "")
		{
			alert("Please enter your address.");
			chk.address.focus();
			return false;
		}
		if(city == "")
		{
			alert("Please enter your city.");
			chk.city.focus();
			return false;
		}
		if(state == "")
		{
			alert("Please enter your state.");
			chk.state.focus();
			return false;
		}
		if(zip == "")
		{
			alert("Please enter your zip code.");
			chk.zip.focus();
			return false;
		}
		
		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }
		
				 
		 if(phone == "")
		 {
			alert("Please enter your phone number.");
			chk.phone.focus();
			return false;
		 }
		 				
		 if(isNotNumeric(phone))
		 {
			alert("Invalid characters in phone number.");
			chk.phone.focus();
			return false;		  
		 }
		 if(phone.length<7)
		 {
			alert("Phone number can not be less than 7 digits.");
			chk.phone.focus();
			return false;		  
		 }		 
}

//Check check turbine interest form
function check_turbine_interest(chk)
{
		var first_name	  = trim(chk.first_name.value);
		var last_name	  = trim(chk.last_name.value);
		var title	  	  = trim(chk.title.value);
		var company  	  = trim(chk.company.value);
		var country  	  = trim(chk.country.value);
		var email		  = trim(chk.email.value);
		var phone 		  = trim(chk.phone.value);
		var comments	  = trim(chk.comments.value);
				
		if(first_name == "")
		 {
			alert("Please enter your first name.");
			chk.first_name.focus();
			return false;
		}
		if(isNotAlphabets(first_name))
		 {
			alert("Invalid characters in first name.");
			chk.first_name.focus();
			return false;		  
		 }

		if(last_name == "")
		 {
			alert("Please enter your last name.");
			chk.last_name.focus();
			return false;
		}
		if(isNotAlphabets(last_name))
		 {
			alert("Invalid characters in last name.");
			chk.last_name.focus();
			return false;		  
		 }

		if(title == "")
		 {
			alert("Please enter your title.");
			chk.title.focus();
			return false;
		}
		 		 
		if(company == "")
		{
			alert("Please enter your company name.");
			chk.company.focus();
			return false;
		}
		if(country == "")
		{
			alert("Please enter your country.");
			chk.country.focus();
			return false;
		}

		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }
		
				 
		 if(phone == "")
		 {
			alert("Please enter your phone number.");
			chk.phone.focus();
			return false;
		 }
		 				
		 if(isNotNumeric(phone))
		 {
			alert("Invalid characters in phone number.");
			chk.phone.focus();
			return false;		  
		 }
		 if(phone.length<7)
		 {
			alert("Phone number can not be less than 7 digits.");
			chk.phone.focus();
			return false;		  
		 }		 
}

//Rental Power - Contact form
function check_rental_frm(chk)
{
		var first_name  = trim(chk.first_name.value);
		var company  	  = trim(chk.company.value);
		var phone 		  = trim(chk.phone.value);
		var email		  = trim(chk.email.value);
		var last_name	  = trim(chk.last_name.value);
				
		if(first_name == "")
		 {
			alert("Please enter your first name.");
			chk.first_name.focus();
			return false;
		}
		if(isNotAlphabets(first_name))
		 {
			alert("Invalid characters in first name.");
			chk.first_name.focus();
			return false;		  
		 }
		 if(last_name == "")
		 {
			alert("Please enter your last name.");
			chk.last_name.focus();
			return false;
		}
		if(isNotAlphabets(last_name))
		 {
			alert("Invalid characters in last name.");
			chk.last_name.focus();
			return false;		  
		 }
		if(company == "")
		{
			alert("Please enter your company name.");
			chk.company.focus();
			return false;
		}
		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }
		 if(phone != "")
		 {
				 				
			 if(isNotNumeric(phone))
			 {
				alert("Invalid characters in phone number.");
				chk.phone.focus();
				return false;		  
			 }
			 if(phone.length<7)
			 {
				alert("Phone number can not be less than 7 digits.");
				chk.phone.focus();
				return false;		  
			 }		 
		 }
		 
}

//anti-idling newsletter - Contact form
function check_anti_frm(chk)
{
		var first_name  = trim(chk.first_name.value);
		var company  	  = trim(chk.company.value);
		var phone 		  = trim(chk.phone.value);
		var email		  = trim(chk.email.value);
		if(first_name == "")
		 {
			alert("Please enter your name.");
			chk.first_name.focus();
			return false;
		}
		if(isNotAlphabets(first_name))
		 {
			alert("Invalid characters in name.");
			chk.first_name.focus();
			return false;		  
		 }
		 
		if(company == "")
		{
			alert("Please enter your company name.");
			chk.company.focus();
			return false;
		}
		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }
		 if(phone != "")
		 {
				 				
			 if(isNotNumeric(phone))
			 {
				alert("Invalid characters in phone number.");
				chk.phone.focus();
				return false;		  
			 }
			 if(phone.length<7)
			 {
				alert("Phone number can not be less than 7 digits.");
				chk.phone.focus();
				return false;		  
			 }		 
		 }
		 
}

//Air Compressor - White Paper
function check_white_paper_frm(chk)
{
		var first_name  = trim(chk.first_name.value);
		var company  	  = trim(chk.company.value);
		var phone 		  = trim(chk.phone.value);
		var email		  = trim(chk.email.value);
		if(first_name == "")
		 {
			alert("Please enter your name.");
			chk.first_name.focus();
			return false;
		}
		if(isNotAlphabets(first_name))
		 {
			alert("Invalid characters in name.");
			chk.first_name.focus();
			return false;		  
		 }
		 
		if(company == "")
		{
			alert("Please enter your company name.");
			chk.company.focus();
			return false;
		}
		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }
		 if(phone != "")
		 {
				 				
			 if(isNotNumeric(phone))
			 {
				alert("Invalid characters in telephone number.");
				chk.phone.focus();
				return false;		  
			 }
			 if(phone.length<7)
			 {
				alert("Telephone number can not be less than 7 digits.");
				chk.phone.focus();
				return false;		  
			 }		 
		 }
		 
}

//Air Compressor - Contact form
function check_air_compressor_frm(chk)
{
		var first_name  = trim(chk.first_name.value);
		var company  	  = trim(chk.company.value);
		var phone 		  = trim(chk.phone.value);
		var email		  = trim(chk.email.value);
		var interested = document.getElementById("interested").checked;
		var interested1 = document.getElementById("interested1").checked;
		var interest = document.getElementById("interest").checked;
		var interest1 = document.getElementById("interest1").checked;
		var interest2 = document.getElementById("interest2").checked;
		var interest3 = document.getElementById("interest3").checked;
		var interest4 = document.getElementById("interest4").checked;
		if(interested == false && interested1 == false)
		{
			alert("Please select \"What type of air compressor are you interested in?\"");
			document.getElementById("interested").focus();
			return false;
		}
		if(interest == false && interest1 == false && interest2 == false && interest3 == false && interest4 == false)
		{
			alert("Please select \"Tell us what issues interest you\"");
			document.getElementById("interest").focus();
			return false;
		}
		if(first_name == "")
		 {
			alert("Please enter your name.");
			chk.first_name.focus();
			return false;
		}
		if(isNotAlphabets(first_name))
		 {
			alert("Invalid characters in name.");
			chk.first_name.focus();
			return false;		  
		 }
		 
		if(company == "")
		{
			alert("Please enter your company name.");
			chk.company.focus();
			return false;
		}
		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }
		 if(phone != "")
		 {
				 				
			 if(isNotNumeric(phone))
			 {
				alert("Invalid characters in phone number.");
				chk.phone.focus();
				return false;		  
			 }
			 if(phone.length<7)
			 {
				alert("Phone number can not be less than 7 digits.");
				chk.phone.focus();
				return false;		  
			 }		 
		 }
		 
}

//industry - contingency_planning_disrupted_electric_power - Contact form
function check_contingency_planning_frm(chk)
{
		var first_name  = trim(chk.first_name.value);
		var company  	  = trim(chk.company.value);
		var phone 		  = trim(chk.phone.value);
		var email		  = trim(chk.email.value);
		if(first_name == "")
		 {
			alert("Please enter your name.");
			chk.first_name.focus();
			return false;
		}
		if(isNotAlphabets(first_name))
		 {
			alert("Invalid characters in name.");
			chk.first_name.focus();
			return false;		  
		 }
		 
		if(company == "")
		{
			alert("Please enter your company name.");
			chk.company.focus();
			return false;
		}
		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }
		 if(phone == "")
		 {
			 alert("Please enter your phone number.");
			chk.phone.focus();
			return false;		  
		 }	 				
			 if(isNotNumeric(phone))
			 {
				alert("Invalid characters in phone number.");
				chk.phone.focus();
				return false;		  
			 }
			 if(phone.length<7)
			 {
				alert("Phone number can not be less than 7 digits.");
				chk.phone.focus();
				return false;		  
			 }		 
		 
}


//industry - top_ten_emergency_service_calls - Contact form
function check_top_ten_frm(chk)
{
		var first_name  = trim(chk.first_name.value);
		var company  	  = trim(chk.company.value);
		var phone 		  = trim(chk.phone.value);
		var email		  = trim(chk.email.value);
		if(first_name == "")
		 {
			alert("Please enter your name.");
			chk.first_name.focus();
			return false;
		}
		if(isNotAlphabets(first_name))
		 {
			alert("Invalid characters in name.");
			chk.first_name.focus();
			return false;		  
		 }
		 
		if(company == "")
		{
			alert("Please enter your company name.");
			chk.company.focus();
			return false;
		}
		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }
		 if(phone == "")
		 {
			 alert("Please enter your phone number.");
			chk.phone.focus();
			return false;		  
		 }	 				
			 if(isNotNumeric(phone))
			 {
				alert("Invalid characters in phone number.");
				chk.phone.focus();
				return false;		  
			 }
			 if(phone.length<7)
			 {
				alert("Phone number can not be less than 7 digits.");
				chk.phone.focus();
				return false;		  
			 }		 
		 
}


//industry - Acert - Contact form
function check_acert_frm(chk)
{
		var first_name  = trim(chk.first_name.value);
		var company  	  = trim(chk.company.value);
		var phone 		  = trim(chk.phone.value);
		var email		  = trim(chk.email.value);
		if(first_name == "")
		 {
			alert("Please enter your name.");
			chk.first_name.focus();
			return false;
		}
		if(isNotAlphabets(first_name))
		 {
			alert("Invalid characters in name.");
			chk.first_name.focus();
			return false;		  
		 }
		 
		if(company == "")
		{
			alert("Please enter your company name.");
			chk.company.focus();
			return false;
		}
		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }
		 if(phone == "")
		 {
			 alert("Please enter your phone number.");
			chk.phone.focus();
			return false;		  
		 }	 				
			 if(isNotNumeric(phone))
			 {
				alert("Invalid characters in phone number.");
				chk.phone.focus();
				return false;		  
			 }
			 if(phone.length<7)
			 {
				alert("Phone number can not be less than 7 digits.");
				chk.phone.focus();
				return false;		  
			 }		 
		 
}

//Rental Power - Contact form
function check_thinkbig_frm(chk)
{
	
		var first_name 	 =trim(chk.first_name.value);
		var description  = trim(chk.description.value);
		var email		 = trim(chk.email.value);
		var last_name	 = trim(chk.last_name.value);
		
		var state       = trim(chk.state.value);
						
		if(first_name == "")
		 {
			alert("Please enter your first name.");
			chk.first_name.focus();
			return false;
		}
		if(isNotAlphabets(first_name))
		 {
			alert("Invalid characters in first name.");
			chk.first_name.focus();
			return false;		  
		 }
		 if(last_name == "")
		 {
			alert("Please enter your last name.");
			chk.last_name.focus();
			return false;
		}
		if(isNotAlphabets(last_name))
		 {
			alert("Invalid characters in last name.");
			chk.last_name.focus();
			return false;		  
		 }
		
		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }
		
		
		 
		  if(state==""){
			 alert("Please enter your State.");			
			return false;
		 }
	  if(chk.program[0].checked==false && chk.program[1].checked==false )
		 {
			alert("Please select  your interested State.");			
			return false;
		 }		
		 
		 
}

//Generator Rental - Contact form
function check_generator_frm(chk)
{
		var company  	= trim(chk.company.value);
		var first_name  = trim(chk.first_name.value);
		var country  	= trim(chk.country.value);
		var description		= trim(chk.description.value);
		var last_name	= trim(chk.last_name.value);
		var email	= trim(chk.email.value);		
		var phone	= trim(chk.phone.value);
		if(company == "")
		 {
			alert("Please enter your company name.");
			chk.company.focus();
			return false;
		}
		if(first_name == "")
		 {
			alert("Please enter your first name.");
			chk.first_name.focus();
			return false;
		}
		if(isNotAlphabets(first_name))
		 {
			alert("Invalid characters in first name.");
			chk.first_name.focus();
			return false;		  
		 }
		 if(last_name == "")
		 {
			alert("Please enter your last name.");
			chk.last_name.focus();
			return false;
		}
		if(isNotAlphabets(last_name))
		 {
			alert("Invalid characters in last name.");
			chk.last_name.focus();
			return false;		  
		 }
		
		 if(country == "")
		 {
			alert("Please enter your country.");
			chk.country.focus();
			return false;
		 }
		 if(isNotAlphabets(country))
		 {
			alert("Invalid characters in country.");
			chk.country.focus();
			return false;		  
		 }
		  if(phone == "")
		 {
			alert("Please enter your phone number.");
			chk.phone.focus();
			return false;
		 } 
		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }	
					
		if(chk.interested[0].checked == false && chk.interested[1].checked == false)
		 {
			alert("Please select your interests.");
			chk.interested[0].focus();
			return false;
		 }
}

//Used Generator Rental - Contact form
function check_used_generator_frm(chk)
{
		var first_name  = trim(chk.first_name.value);
		
		var email		  = trim(chk.email.value);
		var last_name	  = trim(chk.last_name.value);
		var phone	  = trim(chk.phone.value);
				
		if(first_name == "")
		 {
			alert("Please enter your first name.");
			chk.first_name.focus();
			return false;
		}
		if(isNotAlphabets(first_name))
		 {
			alert("Invalid characters in first name.");
			chk.first_name.focus();
			return false;		  
		 }
		 if(last_name == "")
		 {
			alert("Please enter your last name.");
			chk.last_name.focus();
			return false;
		}
		if(isNotAlphabets(last_name))
		 {
			alert("Invalid characters in last name.");
			chk.last_name.focus();
			return false;		  
		 }
		
		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }
		 
		if(phone == "")
		 {
			alert("Please enter your phone number.");
			chk.phone.focus();
			return false;
		 } 
}

//Compare checkbox 
function check_compare(chk,compareName)
{
	//alert(compareName);
	len = chk.elements.length;
		count=0;
		
		for(i=0;i<len;i++)
		{
			element_type = chk.elements[i].type;
			
			if(element_type=="checkbox")
			{
				if(chk.elements[i].checked==true)
				{
					count++;
				}
			}
		}
		
		if(count<2)
		{
			alert("Please select at least two "+compareName+".");
			return false;
		}
		if(count>3)
		{
			alert("Please select maximum three "+compareName+".");
			return false;
		}
		chk.submit();
}

//Rental Power - Request form
function check_request_frm(chk)
{
		var first_name  = trim(chk.first_name.value);
		var phone 		  = trim(chk.phone.value);
		var email		  = trim(chk.email.value);
		
				
		if(first_name == "")
		 {
			alert("Please enter your name.");
			chk.first_name.focus();
			return false;
		}
		if(isNotAlphabets(first_name))
		 {
			alert("Invalid characters in name.");
			chk.first_name.focus();
			return false;		  
		 }
		 
		 
		 if(phone == "")
		 {
			alert("Please enter your phone number.");
			chk.phone.focus();
			return false;
		 }	 				
			 if(isNotNumeric(phone))
			 {
				alert("Invalid characters in phone number.");
				chk.phone.focus();
				return false;		  
			 }
			 if(phone.length<7)
			 {
				alert("Phone number can not be less than 7 digits.");
				chk.phone.focus();
				return false;		  
			 }		 
		 
		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }
		 
}

//Tier4 - Contact form
function check_tier4_frm(chk)
{
		var first_name  = trim(chk.contact_name.value);
		var company  	  = trim(chk.company.value);
		var phone 		  = trim(chk.phone.value);
		var email		  = trim(chk.email.value);
		if(first_name == "")
		 {
			alert("Please enter your name.");
			chk.contact_name.focus();
			return false;
		}
		if(isNotAlphabets(first_name))
		 {
			alert("Invalid characters in name.");
			chk.contact_name.focus();
			return false;		  
		 }
		 
		if(company == "")
		{
			alert("Please enter your company name.");
			chk.company.focus();
			return false;
		}
		 if(email == "")
		 {
			alert("Please enter your email address.");
			chk.email.focus();
			return false;
		 }
		 				
		 if(!checkEmail(email))
		 {
			alert("Please enter valid email address.");
			chk.email.focus();
			return false;		  
		 }
		  if(phone == "")
		 {
			alert("Please enter your phone number.");
			chk.phone.focus();
			return false;
		 }	 				
			 if(isNotNumeric(phone))
			 {
				alert("Invalid characters in phone number.");
				chk.phone.focus();
				return false;		  
			 }
			 if(phone.length<7)
			 {
				alert("Phone number can not be less than 7 digits.");
				chk.phone.focus();
				return false;		  
			 }		 
		 
		 
}