var pageWidth=802;
var pageHeight=605;
var HM_DOM = (document.getElementById) ? true : false;
var HM_NS4 = (document.layers) ? true : false;
var HM_IE = (document.all) ? true : false;
var HM_IE4 = HM_IE && !HM_DOM;
var HM_IECSS = (document.compatMode ==  "CSS1Compat") ? true : false;
var HM_Canvas = HM_IECSS ? document.documentElement : document.body;
function getLeft(number,event)
{
  var sum = 23;
  if (HM_IE) 
  {
    for (var i=1; i < number; i++)
    {
      sum += document.getElementById("td"+i).clientWidth;
      sum += 6;
    } 	
    sum += CenterDiv_X();
  }
 else 
 {
    sum = event.pageX;
 } 
return sum;
}

function CenterDiv_X() {
        var windowWidth = HM_NS4 ? window.innerWidth : HM_Canvas.clientWidth;
        var windowHeight = HM_NS4 ? window.innerHeight : HM_Canvas.clientHeight;
	if (windowWidth > pageWidth) {
	  return parseInt((windowWidth-pageWidth) / 2);
	}
        else {
          return 0;	
        }
	
}

function CenterDiv_Y() {
	var windowWidth = HM_NS4 ? window.innerWidth : HM_Canvas.clientWidth;
        var windowHeight = HM_NS4 ? window.innerHeight : HM_Canvas.clientHeight;
	if (windowHeight > pageHeight) {
	  return parseInt((windowHeight-pageHeight) / 2);
	}
        else {
          return 0;	
        }
}