// JavaScript Document
function validate(field)
{

 var emailexp=/^[a-z0-9][a-z_0-9\.]*[a-z_0-9]+@[a-z_0-9]+[a-z_0-9\.]*\.[a-z]{2,5}$/i;
 var numexp=/[0-9_\-+\s]/;
 if(field.name.value=="")
	{
		alert("Please provide your Name !");
		field.name.focus();
		return false;
	}
if(field.company.value=="")
	{
		alert("Please indicate the Company you work for !");
		field.company.focus();
		return false;
	}
if(field.phone.value=="")
	{
		alert("Please let us have your Contact Number !");
		field.phone.focus();
		return false;
	}
 if(field.email.value=="")		
	{
		alert("Please provide Your Email Address !");
		field.email.focus();
		return false;
	}
   else if(emailexp.test(field.email.value)==false)		
    {
		alert("Invalid Email Address entered !");
		field.email.focus();
		return false;
	}
if(field.country.value=="")
	{
		alert("Please let us know your present location !");
		field.country.focus();
		return false;
	}
if(field.issue.value=="")
	{
		alert("Please let us have your Comments !");
		field.issue.focus();
		return false;
	}
 }