// Go Top

function setGoTop() {
	var aTagList = document.getElementsByTagName('a');
	for (var i = 0; i < aTagList.length; i++) {
		if (aTagList[i].href.match(/#top/i)) {
			aTagList[i].onclick = goPageTop;
		}
	}
}
var goTopMove = 15;
var goTopPosi;
function goPageTop() {
	var yPos = document.body.scrollTop || document.documentElement.scrollTop;
	mObj(yPos);
	return false;
}
function mObj(y, s) {
	if (s) goTopMove = s;
	goTopPosi = parseInt(y - y * 4 / goTopMove);
	scrollTo(0, goTopPosi);
	if (goTopPosi > 0) setTimeout('mObj(goTopPosi, goTopMove)', 1);
}
if (window.addEventListener) window.addEventListener('load', setGoTop, false);
if (window.attachEvent) window.attachEvent('onload', setGoTop);



// Smart Rollover

(function()
{	var observe = function(_el, _func, _listener, _callback){
		if(_el.addEventListener){
			_el.addEventListener(_func, function(e){
				_callback.call(_listener, e);
				}, false);
		}else if(_el.attachEvent){
			_el.attachEvent("on"+_func, function(e)
			{	_callback.call(_listener, e);
			});
		}
	};
	observe(window, "load", this, function(){
		var tags = ["img","input"];
		for(var i=0; i<tags.length; i++){
			var nl = document.getElementsByTagName(tags[i]);
			for(var j=0; j<nl.length; j++){
				var el = nl[j];
				if (!el.src.match(/^(.*_)out(\..*)$/)) continue;
				var out = el.src, over = RegExp.$1+"over"+RegExp.$2;
				var rewrite = (function(_out, _over){
					return function(e){
						var img = e.target || window.event.srcElement;
						img.src = (img.src == _out) ? _over : _out;
					}
				})(out, over);
				observe(el, "mouseover", el, rewrite);
				observe(el, "mouseout", el, rewrite);
				(new Image).src = over;
			}
		}
	});
})();