function $(element){return (document.getElementById(element))}
function getXMLHTTPRequest() {
	try {req = new XMLHttpRequest();} 
		catch(err1) {  try {req = new ActiveXObject("Msxml2.XMLHTTP");} 
		catch (err2) { try {req = new ActiveXObject("Microsoft.XMLHTTP");} 
		catch (err3) {req = false;}
	  }
	}
	return req;
}
function deleteAns(idContent,idAns){
	window.open("/php/deleteAns.php?idContent="+idContent+"&idAns="+idAns,"mywindow","location=1,status=1,scrollbars=1,width=250,height=150,menubar=no");
}
function MouseStar(obj){
	var num=1;
	while(num<=obj){
	$("img"+num).src='/images/All/star.gif';
		num++;
	}
}
function Mouse(){
	var num=1;
	while(num<=5){
		$("img"+num).src='/images/All/star_none.gif';
		num++;
	}
}
function Star(obj,id){
	if(getCookie("SartVote"+id)==null){
		setCookie("SartVote"+id,obj);
		var myurl="/php/sartVote.php";
		myurl+="?vote="+obj;
		myurl+="&id="+id;
		http = new getXMLHTTPRequest();
		http.onreadystatechange = function() {
			if (http.readyState != 4) {return; }
			var mytext = http.responseText;
			$('innerStar').innerHTML=mytext;
			alert("คุณโหวต "+obj+" คะแนน");
		};
		http.open("GET", myurl, true); 
		http.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
		http.send(null);
	}else{
		alert("คุณเคยโหวตหัวข้อนี้แล้ว");
	}
}
function setCookie(name, value, expires, path, domain, secure) {
	document.cookie= name + "=" + escape(value) +
	((expires) ? "; expires=" + expires.toGMTString() : "") +
	((path) ? "; path=" + path : "") +
	((domain) ? "; domain=" + domain : "") +
	((secure) ? "; secure" : "");
}
function getCookie(name) {
	var dc = document.cookie;
	var prefix = name + "=";
	var begin = dc.indexOf("; " + prefix);
	if (begin == -1) {
		begin = dc.indexOf(prefix);
		if (begin != 0) return null;
	} else {
		begin += 2;
	}
	var end = document.cookie.indexOf(";", begin);
	if (end == -1) {
		end = dc.length;
	}
	return unescape(dc.substring(begin + prefix.length, end));
}

function deleteCookie(name, path, domain) {
	if (getCookie(name)) {
		document.cookie = name + "=" +
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain : "") +
		"; expires=Thu, 01-Jan-70 00:00:01 GMT";
	}
}
function img_switch(img1,img2,idTag,x){
	if(x%2==0){
		$(idTag).src=img2;
	}else{
		$(idTag).src=img1;
	}
	x++;
	setTimeout('img_switch("'+img1+'","'+img2+'","'+idTag+'",'+x+')',10000);
}