function obj(theId){
    return document.getElementById(theId);
  }

  /*
  function showHideDiv(divId){
    if (obj(divId)) {
      if (obj(divId).style.display=='none') {
        obj(divId).style.display='';
        if(obj("state_"+divId))
          obj("state_"+divId).src=contextPath+"/applications/webwork/site_"+installationId+"/media/down.gif";
      } else {
        obj(divId).style.display='none';
        if(obj("state_"+divId))
          obj("state_"+divId).src= contextPath+"/applications/webwork/site_"+installationId+"/media/up.gif";
      }
    }
  }
  */

  //schede----------------------------------------------------------------
  var isPopup;
  function openUrl (scheda, vetrina, targetPage) {
    if(isPopup) {
      window.opener.location.href = targetPage+'?docId='+scheda+'&VTID='+vetrina;
      window.close();
    } else {
      self.location.href = targetPage+'?docId='+scheda+'&VTID='+vetrina;
    }
  }

  var oldPos;
  var actualPos;
  var gotoHeight;
  var globalSpeed= isExplorer ? 10 : 1;

  function tabChooser(theTargetEl, speed, minDiff, cicle){
    clearInterval(gotoHeight);
    scrollElements = new Array();
    var divEls = obj('scrollObject').getElementsByTagName("div");
    for (i=0; i<divEls.length; i++){
      var divEl = divEls[i];
      if(divEl.className=='scheda')
        scrollElements.push(divEl);
    }

    for (i=0; i<scrollElements.length;i++) {
      var id = scrollElements[i].id;
      if (id && actualPos!=id) {
        obj("sel_"+id).className="tabUnsel";
        obj(id).style.display='none';
      } else {
        obj("sel_"+id).className="tabSel";
        obj(id).style.display='block';
      }
    }
  }

  //alberi di classificazione ----------------------------------------------------------------
  function showHideSubLevels() {
    for (i = 0; i < arguments.length; i++) {
      var id = arguments[i];
      var notAlreadyDone = true;
      if (arguments[i].indexOf('docs_')>-1) {
        notAlreadyDone = false;
        id = arguments[i].substring('docs_'.length, arguments[i].length);
      }

      // images loading
      drawImage(arguments[i]);

      // working on id div
      if (obj(id)) {
        if (obj(id).style.display == 'none') {
          obj(id).style.display = '';
          if (obj("state_"+id))
            obj("state_"+id).src=contextPath+"/applications/webwork/site_"+installationId+"/media/down.gif";
        } else {
          obj(id).style.display = 'none';
          if (obj("state_"+id))
            obj("state_"+id).src=contextPath+"/applications/webwork/site_"+installationId+"/media/up.gif";
        }
      }
      // working on docs_id div
      if (obj(arguments[i]) && !notAlreadyDone) {
        if (obj(arguments[i]).style.display == 'none') {
          obj(arguments[i]).style.display = '';
          if (obj("state_"+id))
            obj("state_"+id).src=contextPath+"/applications/webwork/site_"+installationId+"/media/down.gif";
        } else {
          obj(arguments[i]).style.display = 'none';
          if (obj("state_"+id))
            obj("state_"+id).src=contextPath+"/applications/webwork/site_"+installationId+"/media/up.gif";
        }
      }
    }
  }

  function drawImage(id) {
    var docDiv = obj(id).getElementsByTagName('*');
    if(docDiv) {
      for(var j=0; j<docDiv.length; j++) {
        var div = docDiv[j].getAttribute('imgsrc');
        if (div) {
          var imgSrc = docDiv[j].getAttribute('imgsrc');
          var img = docDiv[j].getElementsByTagName('img');
          img[0].src = imgSrc //  width='80'
        }
      }
    }
  }
	
	//PERCORSI UTILITIES

  function  closeFrameWindow(){
           obj("percorso").parentNode.removeChild(obj("percorso"));
  }

  function buildWindow (url, w,h){
    if (obj("percorso")){
			obj("percorso").parentNode.removeChild(obj("percorso"))
		}
    var percorso= createEl("DIV");
		 percorso.style.position = "absolute";
		 percorso.style.visibility = "hidden";
		 percorso.id = "percorso";
		 percorso.name = "percorso";
		 percorso.style.width= w ? w : getWindowDimensionW()-100;
		 percorso.style.height = h ? h : getWindowDimensionH()-100;
		 percorso.style.zindex = 100000;
     document.body.appendChild(percorso);
     obj("percorso").innerHTML="<div id='iframeContainer'></div><div onclick='closeFrameWindow()' style='cursor:pointer; background: black; color:white'>"+getI18n("CLOSE")+"</div>";
     var iframe= createEl("IFRAME");
		 iframe.id = "percorso_iframe";
		 iframe.name =  "percorso_iframe";
		 iframe.style.width= w ? w : getWindowDimensionW()-100;
		 iframe.style.height = h ? h : getWindowDimensionH()-100;
		 iframe.style.border = "none";
 		 iframe.style.backgroundColor = "white";
		 iframe.src=url;
		 
		 subj= obj("percorso");
		 
		 obj("iframeContainer").appendChild(iframe);
		 centerObject("percorso");
		 if (isExplorer)
      subj.style.filter="alpha(opacity="+0+")";
     else
      subj.style.opacity=0;
		 
 		 subj.style.visibility="visible";

    fadeIn('percorso', 0, 10)
}