var frmvalidator  = new Validator("formContact");
frmvalidator.addValidation("txtFirstName","req","Please input your first name.");
frmvalidator.addValidation("txtLastName","req","Please input your last name.");
frmvalidator.addValidation("txtEmail","req","Please input your email address.");
frmvalidator.addValidation("txtEmail","email","Please input a valid email address.");