// JavaScript Document
function check_input()
{
	var first_name=document.form1.first_name.value;
	var last_name=document.form1.last_name.value;
	var comp_name=document.form1.comp_name.value;
	var address=document.form1.address.value;
	var city=document.form1.city.value;
	var state=document.form1.state.value;
	var zip=document.form1.zip.value;
	var email=document.form1.email.value;
	var phone=document.form1.phone.value;
		//alert(contact);
	if(first_name=="")
	{
		alert("Please enter your first name");
		document.form1.first_name.focus();
		return false;
	}
		if(last_name=="")
	{
		alert("Please enter your last name");
		document.form1.last_name.focus();
		return false;
	}
	if(email=="")
	{
		alert("Please enter your email id");
		document.form1.email.focus();
		return false;
	}
	var emailRegEx = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if(email.match(emailRegEx)){	
	}else{
	alert('Please enter a valid email address');
	document.form1.email.focus();
	return false;
	}
	if(phone=="")
	{
		alert("Please enter your phone number");
		document.form1.phone.focus();
		return false;
	}
		
}