function validation()
{
var name=document.getElementById("name").value; 
var Email=document.getElementById("email").value;
var Address=document.getElementById("email").value;
var city=document.getElementById("city").value;
var state=document.getElementById("state").value;
var zip=document.getElementById("zip").value;
var comment=document.getElementById("comment").value;
var msg="";
var  valid=true;
if(name=="")
	{
		msg+="Please Enter your Name \n";
		valid=false;
	}
	else if(!(isNaN(name)))
	{
		msg+="Please Enter valid Name \n";
		valid=false;
	}
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/.test(Email))
	{
		valid=true;
	}
	else if(Email=="")
	{
		msg+="Please Enter your Email Id \n";
		valid=false;
	}
	else
	{
		msg+="Invalid Email Id\n";
		valid=false;
	}
if(Address=="")
	{
	msg+="please enete your Address\n";
	valid=false;
	}
	
if(city=="")
	{
	msg+="please enter your city\n";
	valid=false;
	}
	else if(!(isNaN(city)))
	{
		msg+="please enter valid cityname\n";
		valid=false;
	}
	if(state="")
	{
	msg+="please enter your State\n";
	valid=false;
	}
	
	
	if(zip=="")
	{
	msg+="please enter your Zipcode\n";
	valid=false;
	}
	else if(isNaN(zip))
	{
		msg+="please enter correct Zipcode\n";
		valid=false;
	}
	
	if(comment=="")
	{
		msg+="please enter your Comments&Suggestions\n";
		valid=false;
	}
	if(!valid)
	{
		alert(msg);
		return false;
	}
	return true;
}