function validate_form() {
if(document.getElementById("Name").value == "") {
alert("Please Enter The Name");
document.getElementById("Name").focus();
return(false);
}
if(document.getElementById("Phone").value == "") {
alert("Please Enter The Phone No.");
document.getElementById("Phone").focus();
return(false);
}
var filter=/^[a-zA-Z][\w\_\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$/;
var Email=document.getElementById('Email').value;
if(!(filter.test(Email)))
{
alert("Please enter valid email");
document.getElementById("Email").focus();
return false;
}

if(document.getElementById("Email").value == "") {
alert("Please Enter Email");
document.getElementById("Email").focus();
return(false);
}
}