// JavaScript Document
if(!noise){
	var noise = {};
}

noise.replaceImages = function(classname, ext, name){
	noise.RI_length = document.getElementsByTagName("img").length;
	for(var i=0; i<noise.RI_length; i++){
		noise.RI_target = document.getElementsByTagName("img")[i];
		switch(noise.RI_target.className){
			case classname:
			noise.RI_src = noise.RI_target.src;
			if(name == null){
				noise.RI_newSrc = noise.RI_src.substring(0, noise.RI_src.lastIndexOf("."))+ext;
			}else{
				noise.RI_newSrc = name+ext;
			}
			noise.RI_target.src = noise.RI_newSrc;
			break;
		}
	}
}