function DataValidation()
{

if (document.regform.email.value == "email") {
alert("Please enter your email");
document.regform.email.focus();
return false;
}
if ((document.regform.email.value == "" ||
document.regform.email.value.indexOf('@', 0) == 
-1) || document.regform.email.value.indexOf('.') 
== -1) 
{
alert("The e-mail entered is empty or invalid!");
document.regform.email.focus();
return false;
}

return true;
}
function createTarget(t){
    window.open("",t, "width=400,height=300");
    return true;
}