// JavaScript Document


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					
}

function CheckContactFields(a)
{
	if(document.form1.textfield.value=='')
	{
		alert("Please Enter Your Name");
		document.form1.textfield.focus();
		return false;
	}
	if(document.form1.textfield2.value=='')
	{
		alert("Please Enter Your Contact No.");
		document.form1.textfield2.focus();
		return false;
	}
	if(document.form1.textfield3.value=='')
	{
		alert("Please Enter Your Email Address");
		document.form1.textfield3.focus();
		return false;
	}
	else
	{
		var emailID=document.form1.textfield3;
	
		if ((emailID.value==null)||(emailID.value==""))
		{
			alert("Your Email Address, please?")
			emailID.focus()
			return false
		}
		if (echeck(emailID.value)==false)
		{
			emailID.value=""
			emailID.focus()
			return false
		}
		return true
	}
	
}<!--