function validate_email(field, alerttxt) {
	with (field) {
		apos = value.indexOf("@");
		dotpos = value.lastIndexOf(".");
		if (apos < 1 || dotpos - apos < 2) {
			alert(alerttxt);
			return false;
		} else {
			return true;
		}
	}
}

function MailMenu() {
	httpObject = getHTTPObject();
	if (httpObject != null) {
		httpObject.onreadystatechange = MailMenuOutput;
		Email = document.getElementById('txtEmail').value
		if (Email != "" ) {
			if (validate_email(document.getElementById('txtEmail'),
					"يجب كتابة الإيميل بصيغة صحيحة")) {
				httpObject.open("GET", "mailmenu.php?action=add&email=" + Email, true);
				httpObject.send(null);
				var diviamge = document.getElementById('mailmenu');
				if (diviamge) {
					diviamge.innerHTML = '<div><center><img src="images/loader.gif"/></center></div>';
				}
			}
		} else {
			alert("يجب ملئ الإيميل لكى تستطيع الإشتراك فى القائمة البريدية");
		}
	}
}
function CancleMail() {
	httpObject = getHTTPObject();
	if (httpObject != null) {
		httpObject.onreadystatechange = MailMenuOutput;
		Name = document.getElementById('txtName').value;
		Email = document.getElementById('txtEmail').value;
		httpObject.open("GET", "mailmenu.php?action=cancle&email=" + Email, true);
		httpObject.send(null);
		var diviamge = document.getElementById('mailmenu');
		if (diviamge) {
			diviamge.innerHTML = '<div style="padding:80px 0 0 0;"><center><img src="images/ajax-loader.gif"/></center></div>';
		}
	}
}
function MailMenuOutput() {
	if (httpObject.readyState == 4) {
		document.getElementById('mailmenu').innerHTML = '<div align=\"center\">' + httpObject.responseText + '</div>';
	}
}

function getHTTPObject() {
	if (window.ActiveXObject)
		return new ActiveXObject("Microsoft.XMLHTTP");
	else if (window.XMLHttpRequest)
		return new XMLHttpRequest();
	else {
		alert("Your browser does not support AJAX.");
		return null;
	}
}
var httpObject = null;