var dir = "images/title_";

function init()
{//	alert("init");
	var W3CDOM = (document.createElement && document.getElementsByTagName);
	if (!W3CDOM) return;
	var test = new Image();
	var tmp = new Date();
	var suffix = tmp.getTime();
	test.src = 'images/logo.jpg';		//+suffix;
//	test.onload = imageReplacement;
	imageReplacement();
}

function imageReplacement()
{//	alert("image replacement");
	replaceThem(document.getElementsByTagName('h1'), 'h1');
	replaceThem(document.getElementsByTagName('h2'), 'h2');
	replaceThem(document.getElementsByTagName('h3'), 'h3');
}

function replaceThem(x, tag)
{	var replace = document.createElement('img');
	for (var i=0;i<x.length;i++)
	{	if (x[i].id)
		{	var y = replace.cloneNode(true);
//			alert(dir + tag + "_" + x[i].id + '.gif');
			y.src = dir + tag + "_" + x[i].id + '.gif';
			y.alt = x[i].firstChild.nodeValue;
			y.vspace = "0"; y.hspace="0";
			x[i].replaceChild(y,x[i].firstChild);
		}
	}
}