function Validateform(TheForm)
{
if (TheForm.fname.value == "")
{
alert("Please enter a value for the \"First Name\" field.");
TheForm.fname.focus();
return (false);
}
if (TheForm.fname.value.length < 2)
{
alert("Please enter at least 2 characters in the \"First Name\" field.");
TheForm.fname.focus();
return (false);
}
if (TheForm.fname.value.length > 100)
{
alert("Please enter at most 100 characters in the \"First Name\" field.");
TheForm.fname.focus();
return (false);
}
if (TheForm.lname.value == "")
{
alert("Please enter a value for the \"Last Name\" field.");
TheForm.lname.focus();
return (false);
}
if (TheForm.lname.value.length < 2)
{
alert("Please enter at least 2 characters in the \"Last Name\" field.");
TheForm.lname.focus();
return (false);
}
if (TheForm.lname.value.length > 100)
{
alert("Please enter at most 100 characters in the \"Last Name\" field.");
TheForm.lname.focus();
return (false);
}

if (TheForm.hmemail.value == "")
{
alert("Please enter a value for the \"E-mail\" field.");
TheForm.hmemail.focus();
return (false);
}
if (TheForm.hmemail.value.length < 2)
{
alert("Please enter at least 2 characters in the \"E-mail\" field.");
TheForm.hmemail.focus();
return (false);
}
if (TheForm.hmemail.value.length > 100)
{
alert("Please enter at most 100 characters in the \"E-mail\" field.");
TheForm.hmemail.focus();
return (false);
}
	
if ((TheForm.hmemail.value==null)||(TheForm.hmemail.value=="")){
	alert("Please Enter your Email ID")
	TheForm.hmemail.focus()
	return false
}
if (echeck(TheForm.hmemail.value)==false){
	TheForm.hmemail.value=""
	TheForm.hmemail.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					
	}