function changeContent(elementid, url){
    	var element = document.getElementById(elementid);
        if(element){
        	var req = getAjaxRequest();
          	req.onreadystatechange = function() {
          	if (req.readyState == 4) {
          		if (req.status == 200) {
              		element.innerHTML=req.responseText;
              	}
            }
          	}
          		
          	// IE ei lataa uudestaan ellei URL muutu...
        	fixedUrl = url+"&"+ new Date().getTime();
        		
          	req.open("GET", fixedUrl, true);
          	req.send(null);
    	}	
    }

	function getAjaxRequest(){
    	var ajaxRequest=null; 
        	
        try{
        	// Opera 8.0+, Firefox, Safari
        	ajaxRequest = new XMLHttpRequest();
        } catch (e){
        	// Internet Explorer Browsers
        	try{
        		ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
        	} catch (e) {
        		try{
        			ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
        		} catch (e){}
        	}
        }

    	return ajaxRequest;
	}

	
	function loadMuuli(lang){
    	var command="?command=muuli&lang="+lang;
   
		changeContent("muuli", command);
	}