function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function changeClass(element,class_name) {
    element.className=class_name;
}

function openPopup(url) {
	var popup=window.open(url+'?style=popup','POPUP','scrollbars=auto,width=650,height=500');
	popup.focus();
}

function openBildup(url) {
	var popup=window.open(url,'Bildupload','scrollbars=auto,width=440,height=180');
	popup.focus();
}






function getDistricts(r,args) {
	var t,a;
	t=args.e.form['search[district]']
	if (!t) return false;
	
  var i=t.options.length-1;
  while (i>=0) {
  	t.remove(i);
  	i--;
  }
	if (!r) {
		parameter={};
		parameter.sp='getDistricts';
		parameter.city=args.e.value;
		HttpRequest({url:'/?mode=js_sp',method:'POST',parameter:parameter,callback:'getDistricts',args:args});
	}
	else {
		if (r.status) t.options[0]=new Option(r.status);
		else {
			t.options[0]=new Option(unescape('Bitte%20w%e4hlen'),'');
			if (r.data.length) {
    		for (a=0;a<r.data.length;a++) {
    			t.options[a+1]=new Option(r.data[a].cdata,r.data[a].value);
					if (args.s && r.data[a].value==args.s) t.options[a+1].selected=true;
    		}
			}
		}
	}
	return true;
}

function getApartments(r,args) {
	var t,a;
	t=document.getElementById('apartments');
	if (!t) return false;
	
	if (!r) {
		parameter={};
		parameter.sp='getApartments';
		parameter.apartment_selected=args.a;
		parameter.offers=args.o;
		parameter.region=args.r;
		parameter.lage=args.l;
		parameter.price=args.p;
		parameter.toggle=args.t;
		HttpRequest({url:'/?mode=js_sp',method:'POST',parameter:parameter,callback:'getApartments',args:args});
	}
	else {
		if (r.status) t.innerHTML=r.status;
		else if (r.html!=undefined) {
			t.innerHTML=r.html;
		}
	}
	return true;
}
function setApartmentSelected(args) {
  parameter={};
  parameter.sp='setApartmentSelected';
  parameter.toggle=args.t;
  HttpRequest({url:'/?mode=js_sp',method:'POST',parameter:parameter,args:args});
}


function HttpRequest(c) {
	/*
	req=window.req;
	if (req && req.readyState<4) req.abort();
	*/
	if (window.XMLHttpRequest) var req=new XMLHttpRequest();
	else if (window.ActiveXObject) var req=new ActiveXObject("Microsoft.XMLHTTP");

	var res=null;
	
	var parameter='';
	
	if (c.parameter!=undefined) {
		for (var i in c.parameter) {
			var e=c.parameter[i];
			if (e!=null) {
				//if (window.globals.debug) alert('hallo '+i+' '+e);
				parameter+=i+'='+encodeURIComponent(e)+'&';
			}
		}
	}
	
	
	req.open((c.method?c.method:'GET'),c.url,true);
	req.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
	req.onreadystatechange=function () {
		if (req.readyState==4) {
			if (req.status==200) {
				res=eval("("+(req.responseText?req.responseText:"{status:'no data'}")+")");
				//if (window.globals.debug) alert(req.responseText);
			}
		}
		else if (req.readyState!=0) res=eval("({status:'loading...'})");
		
		if (typeof(window[c.callback])=='function') {
			window[c.callback](res,(c.args?c.args:false));
		}
	};
	req.send(parameter);
}

function checkinput(e,a,c) {
	var b;
	b=false;
	switch (a) {
		case 'number':
			b=!isNaN(e.value);
		break;
	}
	if (!b && c) {
		var re = new RegExp("\\D+","gi");
		e.value=e.value.replace(re,'');
	}
	return b;
}