// onload = window_onload;
function writeHtml(layerName, htmlCode){
	if (document.getElementById) // Netscape 6 and IE 5.x
{
	if (window.HTMLElement) // Netscape 6 has this
{
		spanNode = document.getElementById(layerName);
			while (spanNode.hasChildNodes()) 
			{
				spanNode.removeChild(spanNode.lastChild);
		}			
					var range = document.createRange();			
					range.selectNodeContents(spanNode);
					spanNode.appendChild(range.createContextualFragment(htmlCode));
		}
				else // otherwise, it's IE
				{
					document.all(layerName).innerHTML = htmlCode;
				}
			}
			else if (document.layers) // Netscape 4.x
			{
				var layer = document.layers[layerName];		
		   	layer.document.open();
		   	layer.document.write(htmlCode);
		   	layer.document.close();
			}
			else if (document.all) // IE 4.x
			{
			   document.all[layerName].innerHTML = htmlCode;
			}
		}
		function setImage(layerName, imageName, imageSrc)
		{
			if (document.getElementById) 
			{
				imgNode = document.getElementById(imageName)
				imgNode.src = imageSrc;
			}
			else if (document.layers) 
			{
				var layer = document.layers[layerName];
				layer.document.images[imageName].src = imageSrc;
			}
		}
		function window_onload()
		{
			writeHtml('textBlock', 'Just some text');
		}