function enter1()
{

if(document.getElementById("name").value == "")
{
alert("Enter Your Name");
return false;
}

var reg1 = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
var address1 = document.form1.email.value;
if(reg1.test(address1) == false)
{
alert("Invaild Email Address");
return false;
}

}