function historyback() {
           if(history.length == 0) {
              document.location.href = "../../cnt/news/index.php";
           } else {
              history.go(-1);
           }
  }

var timeout;

  function ShowHierarchy(a,e){
	window.clearInterval(timeout);
  	document.getElementById('HierarchyC').style.visibility = "visible";
  	document.getElementById('HierarchyC').innerHTML = e;

	var c = (document.getElementById('HierarchyC').offsetHeight+getElementPosition(a).y) > window.innerHeight ?
			window.innerHeight-document.getElementById('HierarchyC').offsetHeight-5:
			getElementPosition(a).y+7;

	document.getElementById('HierarchyC').style.top = c;

  	document.getElementById('HierarchyP').style.visibility = "visible";
  	document.getElementById('HierarchyP').style.top = getElementPosition(a).y+7;
  }

  function HideHierarchy(){
	timeout = window.setTimeout('HideHierarchyForReal()',2000);
  }

function HierarchyOver() {window.clearInterval(timeout);}
function HierarchyOut() {HideHierarchy()}

  function HideHierarchyForReal(){
  	document.getElementById('HierarchyC').style.visibility = "hidden";
  	document.getElementById('HierarchyP').style.visibility = "hidden";
  }

  function getElementPosition(obj) {
   var position = new Object();
       position.x = new Number();
       position.y = new Number();
   if(document.all || document.getElementById) {
      while(obj != null) {
           position.x += obj.offsetLeft;
           position.y += obj.offsetTop;
           obj = obj.offsetParent;
      }
   } else if(document.layers) {
      var elements = new Array('anchors','images','layers');
      for(var i=0; i<elements.length; i++) {
          for(var j=0; j<eval('document.'+elements[i]+'.length'); j++) {
              if(obj == eval('document.'+elements[i]+'['+j+'].name')) {
                 obj = eval('document.'+elements[i]+'['+j+']');
                 break; break;
              }
          }
      }
      position.x = obj.x;
      position.y = obj.y;
   }
   return position;
  }