// JavaScript Document
var isPost = false;
function validateForm(objForm) {
	if  ( isPost ) {
		alert("You have press the SUBMIT button already");
		return false;
	} else if ( IsEmpty(objForm.name.value)) {
		Warning(objForm.name , "Please specify your Name");
		return false;
	} else if ( IsEmpty(objForm.email.value)) {
		Warning(objForm.email ,"Please specify your E-mail");
		return false;
	} else if ( ! IsEmail(objForm.email.value)) {
		Warning(objForm.email ,"Please specify your E-mail in the right format");
		return false;
    } else if ( IsEmpty(objForm.survey.value)) {
		Warning(objForm.survey , "Please take a moment to let us know from where you get to know our site");
		return false;
	} else {
		isPost = true;
		objForm.btnSubmit.disabled = true;
		return true;


	}
}