function validate()
{
	var name=document.getElementById("name").value;
	var email=document.getElementById("from").value;
	var phone=document.getElementById("phone").value;
	if (name == "")
	{
		alert ('Enter the Name');
		return false;
	}
	if (email == "")
	{
		alert ('Enter the Email Address');
		return false;
	}
	if(email!="")
	{
		var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
		if(reg.test(email) == false)
		{
			alert('Invalid Email Address');
			return false;
		}
	}
	if (phone == "")
	{
		alert ('Enter the Phone Number');
		return false;
	}
	var phonetest=/([A-Za-z])/;
	if(phonetest.test(phone)==true)
	{
		alert("Please Enter the Valid phone Number");
		return false;		
	}	   
	return true;
}