var enabletip;
            var offsetypoint;
            var ie;
            var ns6;
            var tipobj;
            var tipiframe;
            var tooltipInitialised = false;


            function initTooltip () {
              enabletip = false;
              offsetypoint=20; //Customize y offset of tooltip
              ie=document.all;
              ns6=document.getElementById && !document.all;
              tipobj = document.getElementById("idDivToolTip");
              tipiframe=document.getElementById("idIFrameToolTip");

              tipobj.style.top="0";
              tipobj.style.left="0";
              tipobj.style.width="0";
              tipobj.style.height="0";
              tipobj.style.border="1px solid black";
              tipobj.style.padding = "2px";
              tipobj.style.backgroundColor="white";
              tipobj.style.zIndex="8888";

              tipiframe.style.width = tipobj.offsetWidth;
              tipiframe.style.height = tipobj.offsetHeight;
              tipiframe.style.top = tipobj.style.top;
              tipiframe.style.left = tipobj.style.left;
              tipiframe.style.zIndex = tipobj.style.zIndex - 1;

              // eens initeel aan/uit zetten om visuele bugs op te lossen
              tipobj.style.position="absolute";
              tipobj.style.visibility="visible";
              tipiframe.style.display="block";

              tooltipInitialised = true;
              hideToolTip();
              document.onmousemove=positiontip;
            }

            function ietruebody(){
            return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body;
            }

            function positiontip(e){
              if (enabletip){
                var curX=(ns6)?e.pageX : event.clientX+ietruebody().scrollLeft;
                var curY=(ns6)?e.pageY : event.clientY+ietruebody().scrollTop;
                //Find out how close the mouse is to the corner of the window
                var rightedge=ie&&!window.opera? ietruebody().clientWidth-event.clientX : window.innerWidth-e.clientX-20;
                var bottomedge=ie&&!window.opera? ietruebody().clientHeight-event.clientY-offsetypoint : window.innerHeight-e.clientY-offsetypoint-20;
                var leftedge=0;
                if (curX<leftedge) {
                  tipobj.style.left="5px";
                } else if (rightedge<tipobj.offsetWidth){
                  //move the horizontal position of the menu to the left by it's width
                  var maxmove = curX - 5;
                  var shouldmove = tipobj.offsetWidth - rightedge;
                  if (shouldmove > maxmove) {
                    var x = 5;
                  } else {
                    var x = curX-shouldmove;
                  }
                  tipobj.style.left= x + "px";
                } else
                  //position the horizontal position of the menu where the mouse is positioned
                  tipobj.style.left=curX+"px";

                //same concept with the vertical position
                if (bottomedge<tipobj.offsetHeight)
                  tipobj.style.top=ie? ietruebody().scrollTop+event.clientY-tipobj.offsetHeight-offsetypoint+"px" : window.pageYOffset+e.clientY-tipobj.offsetHeight-offsetypoint+"px";
                else
                  tipobj.style.top=curY+offsetypoint+"px";

                tipobj.style.position="absolute";
                tipobj.style.visibility="visible";

                if (ie) {
                  tipobj.style.zIndex="8888";
                  tipiframe.style.width = tipobj.offsetWidth;
                  tipiframe.style.height = tipobj.offsetHeight;
                  tipiframe.style.top = tipobj.style.top;
                  tipiframe.style.left = tipobj.style.left;
                  tipiframe.style.zIndex = tipobj.style.zIndex - 1;
                  tipiframe.style.display="block";
                  tipiframe.style.opacity="0";
                  tipiframe.style.filter="alpha(opacity=0)";

                }
                tipobj.style.opacity=".9";
                tipobj.style.filter="alpha(opacity=90)";
                tipobj.style.mozOpacity="0.9";
              }
            }

            function showToolTip(ToolText){
              if (tooltipInitialised) {
                tipobj.innerHTML=ToolText;
                var tbl = document.getElementById("idTableToolTip");
                var tblrow = tbl.rows[0];
                tipobj.style.width= tblrow.offsetWidth + 6;
                tipobj.style.height= tblrow.offsetHeight + 6;
                tipobj.style.border="1px solid black";
                tipobj.style.padding = "2px";
                tipobj.style.backgroundColor="white";
                enabletip=true;
                return false;
              }
            }

            function hideToolTip(){
              if (tooltipInitialised) {
                enabletip=false;
                tipobj.style.postion="absolute";
                tipobj.style.visibility="hidden";
                tipiframe.style.display="none";
                tipobj.style.left="0";
                tipobj.style.top="0";
                tipobj.style.width="0";
                tipobj.style.height="0";
              }
            }