function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function ShowCategoryTableFF(event, SubjectID) {
	var sum='';
	var top1='';
	var top2='';
	var topPosition='';
	sum=parseInt(event.target.x) + document.body.scrollLeft-2;
	document.getElementById("Cat" + SubjectID).style.left = sum;
	top1 = parseInt(document.body.scrollTop);
	top2 = parseInt(event.target.y);
	topPosition = (top2+top1+27);
	document.getElementById("Cat" + SubjectID).style.top = topPosition;
	CategoryTableOn(SubjectID);
}

function ShowCategoryTableIE(SubjectID) {
	var sum='';
	var top1='';
	var top2='';
	var topPosition='';
	sum=parseInt(event.x) - parseInt(event.offsetX) + document.body.scrollLeft-2;
	document.getElementById("Cat" + SubjectID).style.left = sum;
	top1 = parseInt(document.body.scrollTop);
	top2 = parseInt(event.y) - parseInt(event.offsetY);
	topPosition = (top2+top1+27);
	document.getElementById("Cat" + SubjectID).style.top = topPosition;
	CategoryTableOn(SubjectID);
}

function ShowCategoryTable(event, SubjectID) {
    if (navigator.plugins && navigator.mimeTypes && navigator.mimeTypes.length) { // netscape
		ShowCategoryTableFF(event, SubjectID);
    } else {
		ShowCategoryTableIE(SubjectID);
    }
}

var bShow0101 = false; bShow0102 = false; bShow0103 = false;
function GetMenuBtnID(SubjectID) {
    switch (SubjectID) {
        case "0101":    return 1; break;
        case "0102":    return 4; break;
        case "0103":    return 2; break;
    }
}

function CategoryTableOn(SubjectID) {
    document.getElementById('btn' + SubjectID).src = 'img/btn' + GetMenuBtnID(SubjectID) + '_f2.gif';
    document.getElementById("Cat" + SubjectID).style.display='inline';
    eval("bShow" + SubjectID + "=true");
}

function CategoryTableOff(SubjectID) {
    eval("bShow" + SubjectID + "=false;");
	setTimeout("if (!bShow" + SubjectID + ") CloseMenu('" + SubjectID + "')", 100);
}

function CloseMenu(SubjectID) {
    document.getElementById('btn' + SubjectID).src = 'img/btn' + GetMenuBtnID(SubjectID) + (IsMenuBtnOn(SubjectID) ? "_f2" : "") + '.gif';
    document.getElementById("Cat" + SubjectID).style.display='none';
}

CloseMenu("0101");
CloseMenu("0102");
CloseMenu("0103");