window.onload = function() {
	if (document.getElementById("nav")) {
		var tags = document.getElementById("nav").getElementsByTagName("img");
		for (var i = 0; i <  tags.length; i++) {
			var tag = tags[i];
			if (tag.className != "current") {
				tag.onmouseover = function() {
					var thisId = this.id;
					//alert(thisId);
					source = document.getElementById(thisId).src;
					source = source.replace(".jpg", "_on.jpg");
					document.getElementById(thisId).src = source;
				}
				tag.onmouseout = function() {
					var thisId = this.id;
					//alert(thisId);
					source = document.getElementById(thisId).src;
					source = source.replace("_on.jpg", ".jpg");
					document.getElementById(thisId).src = source;
				}
			}
		}
	}
	/*if (document.getElementById("categorie")) {
		var tags = document.getElementById("categorie").getElementsByTagName("div");
		for (var i = 0; i <  tags.length; i++) {
			var tag = tags[i];
			if (tag.className == "cat") {
				tag.onclick = function() {
					var thisId = this.id;
					//alert(thisId);
					var tagsSub = document.getElementById("categorie").getElementsByTagName("div");
					for (var d = 0; d <  tagsSub.length; d++) {
						var tagSub = tagsSub[d];
						var tagId = tagsSub[d].id;
						if (tagSub.className != "cat") {
							document.getElementById(tagId).style.display = "none";
						}
					}
					document.getElementById("sub_" + thisId).style.display = "block";
				}
			}
		}
	}*/
}