function init(dir){
	/**/
	var W3CDOM = (document.createElement && document.getElementsByTagName);
	if (!W3CDOM) return;
	var test = new Image();
	var tmp = new Date();
	var suffix = tmp.getTime();
	var test = new Image();
	test.src = dir+'imagereplacementtest.gif';
	test.onLoad = imageReplacement();
}


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