addLoadEvent(visitusDOM);

function validateVisitUs(theForm) {

	if ((theForm.last_name.value=="")||(theForm.first_name.value=="")||(theForm.email.value=="")) {
		alert("Please, enter your name and e-mail address.");
		return false;
	}
	if (!validateEmail(theForm.email.value)) {
		alert("Please, enter a valid e-mail address.");
		return false;
	}
	
	theForm.sc.value=1;
	return true;
}

function visitusDOM() {
	var frmVisitUs = document.getElementById("visitusform");
	
	if(frmVisitUs) {
		frmVisitUs.onsubmit = function () { 
			return validateVisitUs(frmVisitUs); 
		}
		
		var btnSubmitVisitUs = document.getElementById("buttonSubmitVisitUs");
		if(btnSubmitVisitUs) {
			btnSubmitVisitUs.onclick = function () {
				if(validateVisitUs(frmVisitUs)) {
					frmVisitUs.submit();
				}
				return false;
			}	
		}
	}	
}