/*
	[supesite] (c) 2007-2009 comsenz inc.
	$id: ajax.js 13359 2009-09-22 09:06:19z zhaofei $
*/

var ajaxs = new array();
var ajaxstacks = new array(0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
var ajaxposthandle = 0;
var evalscripts = new array();
var ajaxpostresult = 0;

function ajax(recvtype, waitid) {

	for(var stackid = 0; stackid < ajaxstacks.length && ajaxstacks[stackid] != 0; stackid++);
	ajaxstacks[stackid] = 1;

	var aj = new object();

	aj.loading = 'loading...';//public
	aj.recvtype = recvtype ? recvtype : 'xml';//public
	aj.waitid = waitid ? $(waitid) : null;//public

	aj.resulthandle = null;//private
	aj.sendstring = '';//private
	aj.targeturl = '';//private
	aj.stackid = 0;
	aj.stackid = stackid;

	aj.setloading = function(loading) {
		if(typeof loading !== 'undefined' && loading !== null) aj.loading = loading;
	}

	aj.setrecvtype = function(recvtype) {
		aj.recvtype = recvtype;
	}

	aj.setwaitid = function(waitid) {
		aj.waitid = typeof waitid == 'object' ? waitid : $(waitid);
	}

	aj.createxmlhttprequest = function() {
		var request = false;
		if(window.xmlhttprequest) {
			request = new xmlhttprequest();
			if(request.overridemimetype) {
				request.overridemimetype('text/xml');
			}
		} else if(window.activexobject) {
			var versions = ['microsoft.xmlhttp', 'msxml.xmlhttp', 'microsoft.xmlhttp', 'msxml2.xmlhttp.7.0', 'msxml2.xmlhttp.6.0', 'msxml2.xmlhttp.5.0', 'msxml2.xmlhttp.4.0', 'msxml2.xmlhttp.3.0', 'msxml2.xmlhttp'];
			for(var i=0; i<versions.length; i++) {
				try {
					request = new activexobject(versions[i]);
					if(request) {
						return request;
					}
				} catch(e) {}
			}
		}
		return request;
	}

	aj.xmlhttprequest = aj.createxmlhttprequest();
	aj.showloading = function() {
		if(aj.waitid && (aj.xmlhttprequest.readystate != 4 || aj.xmlhttprequest.status != 200)) {
			changedisplay(aj.waitid, '');
			aj.waitid.innerhtml = '<span><img src="images/base/loading.gif"> ' + aj.loading + '</span>';
		}
	}

	aj.processhandle = function() {
		if(aj.xmlhttprequest.readystate == 4 && aj.xmlhttprequest.status == 200) {
			for(k in ajaxs) {
				if(ajaxs[k] == aj.targeturl) {
					ajaxs[k] = null;
				}
			}
			if(aj.waitid) changedisplay(aj.waitid, 'none');
			if(aj.recvtype == 'html') {
				aj.resulthandle(aj.xmlhttprequest.responsetext, aj);
			} else if(aj.recvtype == 'xml') {
				try {
					aj.resulthandle(aj.xmlhttprequest.responsexml.lastchild.firstchild.nodevalue, aj);
				} catch(e) {
					aj.resulthandle('', aj);
				}
			}
			ajaxstacks[aj.stackid] = 0;
		}
	}

	aj.get = function(targeturl, resulthandle) {	
		if(targeturl.indexof('?') != -1) {
			targeturl = targeturl + '&inajax=1';
		} else {
			targeturl = targeturl + '?inajax=1';
		}
		settimeout(function(){aj.showloading()}, 500);
		if(in_array(targeturl, ajaxs)) {
			return false;
		} else {
			ajaxs.push(targeturl);
		}
		aj.targeturl = targeturl;
		aj.xmlhttprequest.onreadystatechange = aj.processhandle;
		aj.resulthandle = resulthandle;
		var delay = 100;
		if(window.xmlhttprequest) {
			settimeout(function(){
			aj.xmlhttprequest.open('get', aj.targeturl);
			aj.xmlhttprequest.send(null);}, delay);
		} else {
			settimeout(function(){
			aj.xmlhttprequest.open("get", targeturl, true);
			aj.xmlhttprequest.send();}, delay);
		}

	}
	aj.post = function(targeturl, sendstring, resulthandle) {
		if(targeturl.indexof('?') != -1) {
			targeturl = targeturl + '&inajax=1';
		} else {
			targeturl = targeturl + '?inajax=1';
		}
		settimeout(function(){aj.showloading()}, 500);
		if(in_array(targeturl, ajaxs)) {
			return false;
		} else {
			ajaxs.push(targeturl);
		}
		aj.targeturl = targeturl;
		aj.sendstring = sendstring;
		aj.xmlhttprequest.onreadystatechange = aj.processhandle;
		aj.resulthandle = resulthandle;
		aj.xmlhttprequest.open('post', targeturl);
		aj.xmlhttprequest.setrequestheader('content-type', 'application/x-www-form-urlencoded');
		aj.xmlhttprequest.send(aj.sendstring);
	}
	return aj;
}

function newfunction(func){
	var args = new array();
	for(var i=1; i<arguments.length; i++) args.push(arguments[i]);
	return function(event){
		doane(event);
		window[func].apply(window, args);
		return false;
	}
}

function changedisplay(obj, display) {
	if(display == 'auto') {
		obj.style.display = obj.style.display == '' ? 'none' : '';
	} else {
		obj.style.display = display;
	}
	return false;
}

function evalscript(s) {
	if(s.indexof('<script') == -1) return s;
	var p = /<script[^\>]*?>([^\x00]*?)<\/script>/ig;
	var arr = new array();
	while(arr = p.exec(s)) {
		var p1 = /<script[^\>]*?src=\"([^\>]*?)\"[^\>]*?(reload=\"1\")?(?:charset=\"([\w\-]+?)\")?><\/script>/i;
		var arr1 = new array();
		arr1 = p1.exec(arr[0]);
		if(arr1) {
			appendscript(arr1[1], '', arr1[2], arr1[3]);
		} else {
			p1 = /<script(.*?)>([^\x00]+?)<\/script>/i;
			arr1 = p1.exec(arr[0]);
			//获取字符集
			var re = /charset=\"([\w\-]+?)\"/i;
			var charsetarr = re.exec(arr1[1]);
			//appendscript('', arr1[2], arr1[1].indexof('reload=') != -1, charsetarr[1]);
		}
	}
	return s;
}

function appendscript(src, text, reload, charset) {
	var id = hash(src + text);
	if(!reload && in_array(id, evalscripts)) return;
	if(reload && $(id)) {
		$(id).parentnode.removechild($(id));
	}

	evalscripts.push(id);
	var scriptnode = document.createelement("script");
	scriptnode.type = "text/javascript";
	scriptnode.id = id;
	scriptnode.charset = charset;
	try {
		if(src) {
			scriptnode.src = src;
		} else if(text){
			scriptnode.text = text;
		}
		$('append_parent').appendchild(scriptnode);
	} catch(e) {}
}

function stripscript(s) {
	return s.replace(/<script.*?>.*?<\/script>/ig, '');
}

function ajaxupdateevents(obj, tagname) {
	tagname = tagname ? tagname : 'a';
	var objs = obj.getelementsbytagname(tagname);
	for(k in objs) {
		var o = objs[k];
		ajaxupdateevent(o);
	}
}

function ajaxupdateevent(o) {
	if(typeof o == 'object' && o.getattribute) {
		if(o.getattribute('ajaxtarget')) {
			if(!o.id) o.id = math.random();
			var ajaxevent = o.getattribute('ajaxevent') ? o.getattribute('ajaxevent') : 'click';
			var ajaxurl = o.getattribute('ajaxurl') ? o.getattribute('ajaxurl') : o.href;
			_attachevent(o, ajaxevent, newfunction('ajaxget', ajaxurl, o.getattribute('ajaxtarget'), o.getattribute('ajaxwaitid'), o.getattribute('ajaxloading'), o.getattribute('ajaxdisplay')));
			if(o.getattribute('ajaxfunc')) {
				o.getattribute('ajaxfunc').match(/(\w+)\((.+?)\)/);
				_attachevent(o, ajaxevent, newfunction(regexp.$1, regexp.$2));
			}
		}
	}
}

function ajaxget(url, showid, waitid, loading, display, recall) {
	waitid = typeof waitid == 'undefined' || waitid === null ? showid : waitid;
	var x = new ajax();
	x.setloading(loading);
	x.setwaitid(waitid);
	x.display = typeof display == 'undefined' || display == null ? '' : display;
	x.showid = $(showid);
	if(x.showid) x.showid.orgdisplay = typeof x.showid.orgdisplay === 'undefined' ? x.showid.style.display : x.showid.orgdisplay;

	if(url.substr(strlen(url) - 1) == '#') {
		url = url.substr(0, strlen(url) - 1);
		x.autogoto = 1;
	}

	var url = url + '&inajax=1&ajaxtarget=' + showid;
	x.get(url, function(s, x) {
		evaled = false;
		if(s.indexof('ajaxerror') != -1) {
			evalscript(s);
			evaled = true;
		}
		if(!evaled && (typeof ajaxerror == 'undefined' || !ajaxerror)) {
			if(x.showid) {
				changedisplay(x.showid, x.showid.orgdisplay);
				changedisplay(x.showid, x.display);
				x.showid.orgdisplay = x.showid.style.display;
				ajaxinnerhtml(x.showid, s);
				ajaxupdateevents(x.showid);
				if(x.autogoto) scroll(0, x.showid.offsettop);
			}
		}
		if(!evaled)evalscript(s);
		ajaxerror = null;
		if(recall) {eval(recall);}
	});
}

function ajaxpost(formid, func, parameter) {
	showloading();

	if(ajaxposthandle != 0) {
		return false;
	}
	var ajaxframeid = 'ajaxframe';
	var ajaxframe = $(ajaxframeid);
	if(ajaxframe == null) {
		if (is_ie && !is_opera) {
			ajaxframe = document.createelement("<iframe name='" + ajaxframeid + "' id='" + ajaxframeid + "'></iframe>");
		} else {
			ajaxframe = document.createelement("iframe");
			ajaxframe.name = ajaxframeid;
			ajaxframe.id = ajaxframeid;
		}
		ajaxframe.style.display = 'none';
		$('append_parent').appendchild(ajaxframe);
	}
	$(formid).target = ajaxframeid;
	$(formid).action = $(formid).action + '&inajax=1';
	
	//ajaxposthandle = [showid, ajaxframeid, formid, ajaxframeid, func];
	ajaxposthandle = [formid, func, parameter];
	
	if(ajaxframe.attachevent) {
		ajaxframe.detachevent ('onload', ajaxpost_load);
		ajaxframe.attachevent('onload', ajaxpost_load);
	} else {
		document.removeeventlistener('load', ajaxpost_load, true);
		ajaxframe.addeventlistener('load', ajaxpost_load, false);
	}
	$(formid).submit();
	return false;
}

function ajaxpost_load() {
	
	var formstatus = '__' + ajaxposthandle[0];
	
	showloading('none');
	if(is_ie) {
		var s = $('ajaxframe').contentwindow.document.xmldocument.text;
	} else {
		var s = $('ajaxframe').contentwindow.document.documentelement.firstchild.nodevalue;
	}
	evaled = false;
	if(s.indexof('ajaxerror') != -1) {
		evalscript(s);
		evaled = true;
	}
	if(s.indexof('ajaxok') != -1) {
		ajaxpostresult = 1;
	} else {
		ajaxpostresult = 0;
	}
	//function
	if(ajaxposthandle[1]) {
		settimeout(ajaxposthandle[1] + '(\'' + ajaxposthandle[2] + '\',' + ajaxpostresult + ')', 10);
	}
	if(!evaled && (typeof ajaxerror == 'undefined' || !ajaxerror) && $(formstatus)) {
		$(formstatus).style.display = '';
		ajaxinnerhtml($(formstatus), '<div class="popupmenu_inner">' + s + '</div>');
		evalscript(s);
		if($(formstatus).ctrlid) setmenuposition($(formstatus).ctrlid, 0);
		if($(formstatus).ctrlid) jsmenu['timer'][$(formstatus).ctrlid] = settimeout("hidemenu()", 2000);
	}
	ajaxerror = null;
	if($(ajaxposthandle[0])) {
		$(ajaxposthandle[0]).target = 'ajaxframe';
	}
	ajaxposthandle = 0;
}

function hidestatus(showid) {
	showid = '__' + showid;
	if($(showid)) {
		$(showid).style.display = "none";
	}
}

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, 500, 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 : $(ctrlid).attributes['href'].value;
		x.div = div;
		x.etype = e.type;
		x.optionclass = optionclass;
		x.duration = duration;
		x.timeout = timeout;
		x.executetime = executetime;
		x.get(href + '&ajaxmenuid='+ctrlid+'_menu&popupmenu_box='+box, function(s) {
			evaled = false;
			if(s.indexof('ajaxerror') != -1) {
				evalscript(s);
				evaled = true;
				if(!cache && duration != 3 && x.div.id) settimeout('$("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, 500, 1);
				if(func) settimeout(func + '("' + ctrlid + '")', x.executetime);
			}
			if(!evaled) evalscript(s);
			ajaxerror = null;
			showloading('none');
		});
		doane(e);
	}
	showloading('none');
	doane(e);
}
//得到一个定长的hash值,依赖于 stringxor()
function hash(string, length) {
	var length = length ? length : 32;
	var start = 0;
	var i = 0;
	var result = '';
	filllen = length - string.length % length;
	for(i = 0; i < filllen; i++){
		string += "0";
	}
	while(start < string.length) {
		result = stringxor(result, string.substr(start, length));
		start += length;
	}
	return result;
}

function stringxor(s1, s2) {
	var s = '';
	var hash = 'abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz';
	var max = math.max(s1.length, s2.length);
	for(var i=0; i<max; i++) {
		var k = s1.charcodeat(i) ^ s2.charcodeat(i);
		s += hash.charat(k % 52);
	}
	return s;
}

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

function ajaxinnerhtml(showid, s) {
	if(showid.tagname != 'tbody') {
		showid.innerhtml = s;
	} else {
		while(showid.firstchild) {
			showid.firstchild.parentnode.removechild(showid.firstchild);
		}
		var div1 = document.createelement('div');
		div1.id = showid.id+'_div';
		div1.innerhtml = '<table><tbody id="'+showid.id+'_tbody">'+s+'</tbody></table>';
		$('append_parent').appendchild(div1);
		var trs = div1.getelementsbytagname('tr');
		var l = trs.length;
		for(var i=0; i<l; i++) {
			showid.appendchild(trs[0]);
		}
		var inputs = div1.getelementsbytagname('input');
		var l = inputs.length;
		for(var i=0; i<l; i++) {
			showid.appendchild(inputs[0]);
		}		
		div1.parentnode.removechild(div1);
	}
}