<!-- Contact Form Validation -->
function contact_us()
{
	var cnname = document.forms["contact_form"]["cnname"].value;
	var cnemail = document.forms["contact_form"]["cnemail"].value;
	var cnsub = document.forms["contact_form"]["cnsub"].value;
	var filter2 = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	
	if(cnname == null || cnname == "")
	{
		alert("Please Enter Name");
		return false;
	}
	else if(cnemail == null || cnemail == "")
	{
		alert("Please Enter Email");
		return false;
	}
	else if (!filter2.test(cnemail)) {
		alert('Please provide a valid email address');
		return false;
	}
	else if (cnsub == null || cnsub== "")
  	{
  		alert("Please Enter Subject");
  		return false;	  
  	}

	return true;
}
// End of Contact Form Validation 


<!-- Get Quote Form Validation -->
function get_quote()
{
	var gqname = document.forms["get_quote_form"]["gqname"].value;
	var gqemail = document.forms["get_quote_form"]["gqemail"].value;
	var filter3 = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	
	if(gqname == null || gqname == "")
	{
		alert("Please Enter Name");
		return false;
	}
	else if(gqemail == null || gqemail == "")
	{
		alert("Please Enter Email");
		return false;
	}
	else if (!filter3.test(gqemail)) {
		alert('Please provide a valid email address');
		return false;
	}

	return true;
}
// End of Get Quote Form Validation 

<!-- Find More Validation -->
function find_more()
{
	var fmname = document.forms["find_more_form"]["fmname"].value;
	var fmemail = document.forms["find_more_form"]["fmemail"].value;
	var fmph = document.forms["find_more_form"]["fmph"].value;
	var filter4 = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if(fmname == null || fmname == "")
	{
		alert("Please Enter Name");
		return false;
	}
	else if(fmemail == null || fmemail == "")
	{
		alert("Please Enter Email");
		return false;
	}
	else if (!filter4.test(fmemail)) {
		alert('Please provide a valid email address');
		return false;
	}
	else if(fmph == null || fmph == "")
	{
		alert("Please Enter Phone Number");
		return false;
	}
	return true;
}

function find_more2()
{
var chks = document.getElementsByName('chbox[]');
var hasChecked = false;
for (var i = 0; i < chks.length; i++)
{
if (chks[i].checked)
{
hasChecked = true;
break;
}
}
if (hasChecked == false)
{
alert("Please Select At Least One Mat");
return false;
}
return true;
}
<!-- End of Find More Validation -->

<!-- Request Call Back Validation -->
function request_cback()
{
	var rcbname = document.forms["request_call_back_form"]["rcbname"].value;
	var rcbph = document.forms["request_call_back_form"]["rcbph"].value;
	var rcbemail = document.forms["request_call_back_form"]["rcbemail"].value;
	var filter5 = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if(rcbname == null || rcbname == "")
	{
		alert("Please Enter Name");
		return false;
	}
	else if(rcbph == null || rcbph == "")
	{
		alert("Please Enter Phone Number");
		return false;
	}
	else if(rcbemail == null || rcbemail == "")
	{
		alert("Please Enter Email");
		return false;
	}
	else if (!filter5.test(rcbemail)) {
		alert('Please provide a valid email address');
		return false;
	}
	return true;	
}
<!-- End of Request Call Back Validation -->

<!-- News-letter validation -->
function newsletter()
{
	var nwsemail = document.forms["newsletter_form"]["nwsemail"].value;
	var filter6 = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if(nwsemail == null || nwsemail == "")
	{
		alert("Please Enter Email");
		return false;
	}
	else if (!filter6.test(nwsemail)) {
		alert('Please provide a valid email address');
		return false;
	}
	return true;
}
// End of News-letter validation

<!-- Search validation -->
function search_form()
{
	var kwd = document.forms["search_form"]["keywords"].value;
	if(kwd == null || kwd == "")
	{
		alert("Please Enter A Search String");
		return false;
	}
	return true;
}
<!-- End of Search validation -->