// JavaScript Document

function validate(){

var form= document.form;
if (!valid(form.groupname, 'Group Name')) { return false; }
if (!valid(form.name, 'Name')) { return false; }
if (!valid(form.phone, 'Phone Number')) { return false; }
if (!valid(form.email, 'Email Address')) { return false; }
}

function valid(id, name) {
var re = /^\s{1,}$/g; //match any white space including space, tab, form-feed, etc.
if ((id.value.length==0) || (id.value==null) || ((id.value.search(re)) > -1)) {
alert("Please fill: "+name);
return false;
}
else {
return true;
}}