function doContextOpen(sender, objectId){
		document.all["context" + objectId].style.visibility = "visible";
		window.event.cancelBubble = true;
	}

	function doContextClose(sender, objectId){
		document.all["context" + objectId].style.visibility = "hidden";
		window.event.cancelBubble = true;
	}

	function doShowOfficeImage(linkId){
		window.open("./contents/officeimage.php?id=" + linkId, linkId, "width=500px,height=500px,scrollbars=yes,resizable=yes,menubar=no,status=no");
	}
	
	function doShowNews(linkId){
		window.open("./contents/news.php?id=" + linkId, linkId, "width=500px,height=500px,scrollbars=yes,resizable=yes,menubar=no,status=no");
	}
	
	function doShowCanvas(url){
		document.all["canvasImage"].src = url;
		document.all["canvasDiv"].style.left = document.body.scrollLeft;
		document.all["canvasDiv"].style.top = document.body.scrollTop + (screen.height / 4);
		document.all["canvasDiv"].style.display = "";
	}
	function doHideCanvas(sender){
		document.all["canvasDiv"].style.display = "none";
		window.event.cancelBubble = true;
	}