function NavMenuOver(obj) { obj.style.backgroundPosition = "0px -30px"; }
function NavMenuOut(obj) { obj.style.backgroundPosition = "0px 0px"; }
  
function FocusField(obj) { obj.style.backgroundPosition = "0px -200px"; }
function BlurField(obj) { obj.style.backgroundPosition = "0px 0px"; }

function Lib_MouseHand(obj) { obj.style.cursor="pointer"; }
function Lib_MouseNormal(obj) { obj.style.cursor=""; }

function Lib_UpdateElement(NodeName,NodeValue)
  {
   var eDIV = document.createElement("div");
   eDIV.setAttribute("id","myDiv");
   eDIV.appendChild(document.createTextNode(NodeValue));
   document.getElementById(NodeName).appendChild(eDIV);
  }
  
function Lib_ClearElement(obj)
  {
   if (obj) { while(obj.firstChild) obj.removeChild(obj.firstChild); }
  }
  
function Lib_FindObjPosition(obj)
  {
   var curleft = curtop = 0;
   if (obj.offsetParent)
     {
      curtop = obj.offsetTop;
      curleft = obj.offsetLeft;
      while (obj = obj.offsetParent)
        {
         curtop += obj.offsetTop;
         curleft += obj.offsetLeft;
        }
     }
   return [curtop,curleft];
  }