function validateform() {
var valid = 1;
var phoneRE = /^\d{3,5}(-|\s)?\d{3,10}(-|\s)?\d{0,10}$/;
var nameRE = /^[-\w\s]{2,30}$/;
var emailRE = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
var totalmessage ="";
var newWindow;
if (document.getElementById("contactQuery").FirstName.value == "" || (!nameRE.test(document.getElementById("contactQuery").FirstName.value)))
{
valid = 0
totalmessage += "\n\tPlease enter a valid first name at least three characters long.\n ";
}
if (document.getElementById("contactQuery").LastName.value == "" || (!nameRE.test(document.getElementById("contactQuery").LastName.value)))
{
valid = 0
totalmessage += "\n\tPlease enter a valid last name at least three characters long.\n ";
}
if (document.getElementById("contactQuery").Phone.value == "" || (!phoneRE.test(document.getElementById("contactQuery").Phone.value)))
{
valid = 0
totalmessage += "\n\tPlease enter a valid telephone number.\n ";
}
if (document.getElementById("contactQuery").Email.value == "" || (!emailRE.test(document.getElementById("contactQuery").Email.value)))
{
valid = 0
totalmessage += "\n\tPlease enter a valid email address.\n ";
}
// Here we decide whether to submit the form.
if (!valid) {
newWindow = open("","","top=200,left=200,width=400,height=300");
newWindow.document.open();
newWindow.document.write("Form Validation\n\t\n
The details you are trying to submit are incomplete or incorrect.
![](\"images/logo.gif\"){kind=logo}