// JavaScript Documentfunction validate_contact()
 function validate()
 {
 var emailRegxp = /^[a-zA-Z][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$/
 var address = document.frmContact.txtEmail.value;
   if(emailRegxp.test(address) == false) 
    {
      alert('Invalid Email Address');
      return false;
    }
    else
    return true;
}


function postForm()
{
if (validate())
{
    var jack; 
    jack="Name=" + document.frmContact.Name.value + "&txtCompany="+ document.frmContact.txtCompany.value + "&Email=" + document.frmContact.txtEmail.value + "&txtTelephone=" + document.frmContact.txtTelephone.value;
    PostData("index1.aspx",jack);
 }
}