// JavaScript Document

function validatefrm()
{
    if(document.respform.name.value == "" )
	{
		alert('Please enter your Name');
		document.respform.name.focus();
		return false;
	}
	if(document.respform.name.value.length<3)
	{
		alert('Your Name should be more than 3-Chars');
		document.respform.name.focus();
		return false;
	}
 	if(document.respform.email.value == ""){
		alert("Please enter your Email");
		document.respform.email.focus();
		return false;
	}
	if(document.respform.dtl.value == "" )
	{
		alert("Please leave your comments here");
		document.respform.dtl.focus();
		return false;
	}
	if(document.respform.dtl.value == "" )
	{
		alert("Please leave your comments here");
		document.respform.dtl.focus();
		return false;
	}
	if(document.respform.dtl.value.length < 3 )
	{
		alert("Your comments should be more than 3-Chars ");
		document.respform.dtl.focus();
		return false;
	}
	if(document.respform.verifytxt.value == "" )
	{
		alert("Please answer the Questions ");
		document.respform.verifytxt.focus();
		return false;
	}
	if(document.respform.verifytxt.value != "Yes" && document.respform.verifytxt.value != "No" )
	{
		alert("Please answer Yes / No only(Casesensitive)");
		document.respform.verifytxt.focus();
		return false;
	}
var emailID=document.respform.email
	
	if ((emailID.value==null)||(emailID.value==""))
	{
		alert("Please Enter your Email ID")
		emailID.focus()
		return false
	}
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}
	return true
		
}
function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid E-mail ID")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid E-mail ID")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

 		 return true					
	}