function CheckForm251(f) {
if (f.email.value == "") {
 alert("Please enter your email address.");
 f.email.focus();
 return false;
}

var fname = "CustomFields_1_25";
var fld = f[fname];
if (fld.value == "") {
 alert("Please enter a value for field Name");
 fld.focus();
 return false;
}

 return true;
};