function createXMLHttp() {
	if(window.XMLHttpRequest){
		return new XMLHttpRequest();
	} else if(window.ActiveXObject){
		return new ActiveXObject("Microsoft.XMLHTTP");
	} 
	throw new Error("XMLHttp object could be created.");
}

function _sendRequest(url,func,isxml,ispost)
{
	var xhr=createXMLHttp();
	if(!ispost)ispost=null;
	xhr.open(ispost?"POST":"GET",url,true);
	if(func){
		xhr.onreadystatechange=function(){
			if(xhr.readyState==4){
				func(isxml&&xhr.responseXML?xhr.responseXML:xhr.responseText)
			}
		}
	}
	if(is_ie >=7 )
	{
		ispost = null;
	}
	xhr.send(ispost)
}
function ajaxRead(file,fun){
	var xmlObj = createXMLHttp();

	xmlObj.onreadystatechange = function(){
		if(xmlObj.readyState == 4){
			if (xmlObj.status ==200){
				obj = xmlObj.responseXML;
				eval(fun);
			}
			else{
				alert("读取文件出错,错误号为 [" + xmlObj.status  + "]");
			}
		}
	}
	xmlObj.open ('GET', file, true);
	xmlObj.send (null);
}
function ajaxReadText(file,fun){
	var xmlObj = createXMLHttp();

	xmlObj.onreadystatechange = function(){
		if(xmlObj.readyState == 4){
			if (xmlObj.status ==200){
				obj = xmlObj.responseText;
				eval(fun);
			}
			else{
				alert("读取文件出错,错误号为 [" + xmlObj.status  + "]");
			}
		}
	}
	xmlObj.open ('GET', file, true);
	xmlObj.send (null);
}
function getRequestBody(oForm) {
	var aParams = new Array();
	for (var i=0 ; i < oForm.elements.length; i++) {
		/*
		if (oForm.elements[i].type == "checkbox" && oForm.elements[i].checked == false)
		{
			continue;
		}
		*/
		var sParam = encodeURIComponent(oForm.elements[i].name);
		sParam += "=";
		sParam += encodeURIComponent(oForm.elements[i].value);
		aParams.push(sParam);
	}
	return aParams.join("&");
}


function getSpecificNodeValue(doc, tagname, index)
{
	try{
		var oNodes = doc.getElementsByTagName(tagname);
		if (oNodes[index] != null && oNodes[index] != undefined)
		{
			if (oNodes[index].childNodes.length > 1) {
				return oNodes[index].childNodes[1].nodeValue;
			} else {
				return oNodes[index].firstChild.nodeValue;    		
			}
		}
	}
	catch(e){}
	return '';
}

function getSingleNodeValue(doc, tagname)
{
	try{
		var oNodes = doc.getElementsByTagName(tagname);
		if (oNodes[0] != null && oNodes[0] != undefined)
		{
			if (oNodes[0].childNodes.length > 1) {
				return oNodes[0].childNodes[1].nodeValue;
			} else {
				return oNodes[0].firstChild.nodeValue;    		
			}
		}
	}
	catch(e){}
	return '';
}
function ajaxmenu(e, ctrlid, timeout, func, offset) {
   
	var box = 0;
	showloading();
	if(jsmenu['active'][0] && jsmenu['active'][0].ctrlkey == ctrlid) {
		hideMenu();
		doane(e);
		return;
	} else if(is_ie && is_ie < 7 && document.readyState.toLowerCase() != 'complete') {
		return;
	}
	cache = 0;
	divclass = 'popupmenu_popup';
	optionclass = 'popupmenu_option';
	if(isUndefined(timeout)) timeout = 3000;
	if(isUndefined(func)) func = '';
	if(isUndefined(offset)) offset = 0;
	duration = timeout > 10000 ? 3 : 0;
	executetime = duration ? 2000: timeout;
	if(offset == -1) {
		divclass = 'popupmenu_centerbox';
		box = 1;
	}
	var div = $(ctrlid + '_menu');
	if(cache && div) {
		showMenu(ctrlid, e.type == 'click', offset, duration, timeout, 0, ctrlid, 400, 1);
		if(func) setTimeout(func + '(' + ctrlid + ')', executetime);
		doane(e);
	} else {
		if(!div) {
			div = document.createElement('div');
			div.ctrlid = ctrlid;
			div.id = ctrlid + '_menu';
			div.style.display = 'none';
			div.className = divclass;
			$('append_parent').appendChild(div);
		}

		var x = new Ajax();
		var href = !isUndefined($(ctrlid).href) ? $(ctrlid).href : $(ctrlid).attributes['href'].value;
//		alert(href + '&ajaxmenuid='+ctrlid+'_menu&popupmenu_box='+box)
		x.div = div;
		x.etype = e.type;
		x.optionclass = optionclass;
		x.duration = duration;
		x.timeout = timeout;
		x.executetime = executetime;
//		alert(href + '&ajaxmenuid='+ctrlid+'_menu&popupmenu_box='+box)
		
		x.get(href + '&ajaxmenuid='+ctrlid+'_menu&popupmenu_box='+box, function(s) {
			evaled = false;
			if(s.indexOf('ajaxerror') != -1) {
				evalscript(s);
				evaled = true;
				if(!cache && duration != 3 && x.div.id) setTimeout('$("append_parent").removeChild($(\'' + x.div.id + '\'))', timeout);
			}
			if(!evaled && (typeof ajaxerror == 'undefined' || !ajaxerror)) {
				if(x.div) x.div.innerHTML = '<div class="' + x.optionclass + '">' + s + '</div>';
				showMenu(ctrlid, x.etype == 'click', offset, x.duration, x.timeout, 0, ctrlid, 400, 1);
				if(func) setTimeout(func + '("' + ctrlid + '")', x.executetime);
			}
			if(!evaled) evalscript(s);
			ajaxerror = null;
			showloading('none');
		});
		doane(e);
	}
	showloading('none');
	doane(e);
	 
}

function showloading(display, wating) {
	var display = display ? display : 'block';
	var wating = wating ? wating : 'Loading...';
	$('ajaxwaitid').innerHTML = wating;
	$('ajaxwaitid').style.display = display;
}