var http_request = false;
var nid;
var ores = [];
var nres = [];
var fres=[];
var d;

function mr(url, id) {
	http_request = false;
	nid = id;
// alert(url);
//if(d.innerHTML == ores[nid]){d.innerHTML = nres[nid];}else{d.innerHTML = ores[nid];}

if(fres[nid] == null){

	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType) {
			http_request.overrideMimeType('text/xml');
		}
	} else if (window.ActiveXObject) { // IE
		try {
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}

	if (!http_request) {
		alert('Giving up :( Cannot create an XMLHTTP instance');
		return false;
	}


	http_request.onreadystatechange = alertContents;
	http_request.open('GET', url, true);
	http_request.send(null)
}else{
	var d = document.getElementById("men_"+nid);
//	var p = document.getElementById("pic_"+nid);
	
	//alert('--'+d.innerHTML+'--\n'+'--'+ores[nid]+'--\n'+fres[nid]);
	
	if(fres[nid] == false){
		ores[nid]=d.innerHTML;
		d.innerHTML = nres[nid]; 
//		p.src="img/plus.gif"; 
		fres[nid] = true;
	}else{
		nres[nid]=d.innerHTML;
		d.innerHTML = ores[nid]; 
//		p.src="img/plus.gif"; 
		fres[nid] = false;
	}
}

}

function alertContents() {
	var d = document.getElementById("men_"+nid);
//	var p = document.getElementById("pic_"+nid);
//	p.src="img/anl_clock.gif";

if (nres[nid] == null){
	if (http_request.readyState == 4) {	// COMPLETED
		if (http_request.status == 200) {	// HTTP STATUS
//			p.src="img/plus.gif"
//document.body.style.cursor = "crosshair";
			nres[nid]=d.innerHTML+http_request.responseText;
			ores[nid]=d.innerHTML;
			fres[nid]=true;
			d.innerHTML=nres[nid];
//alert (ores[nid]+'--'+nres[nid]);
		} else {
			alert('There was a problem with the request.');
		}
	}

}

//alert (ores[nid]+'--'+nres[nid]+'--'+i);
}


function sh(nid) {
	var d = document.getElementById("menu_"+nid);
	var p = document.getElementById("pic_"+nid);

	//p.src="img/plus.gif"
	//if (d.style.display == ''){d.style.display='none'}else{d.style.display=''}
}