LectorXML.xml='';

	function LectorXML(url){
	    if ((url!=undefined)&&(url!='')) {
		    this.xml = loadCall(url);
	     }
	};
	
	LectorXML.setXML=function(xml){
		this.xml=xml;
	};


	  function loadCall(url) {
	    // branch for native XMLHttpRequest object
	    if (window.XMLHttpRequest) {
	        req = new XMLHttpRequest();
	        req.onreadystatechange = processReqChange;
	        req.open("GET", url, false); // the third parameter - true - specified ASYNCHRONOUS processing i.e. not waiting for the response!
	        req.send(null);
	        return req.responseText;
	    // branch for IE/Windows ActiveX version
	    } else if (window.ActiveXObject) {
	        req = new ActiveXObject("Microsoft.XMLHTTP");
	        if (req) {
	            req.onreadystatechange = processReqChange;
	            req.open("GET", url, false); // the third parameter - true - specified ASYNCHRONOUS processing i.e. not waiting for the response!
	            req.send();
	        	return req.responseText;
	        }
	    }
	  }   
		       
	  function processReqChange()  {
	    // only if req shows "complete"
	    if (req.readyState == 4) {
	      // only if "OK"
	      if (req.status == 200) {
	          xmldoc=req.responseXML;
	          //_xml=req.responseText;
	      }
	      else {
	        alert("Error: can not get the content ("+ req.statusText +")");
	      }    
	    }
	  }