function initMoving(target, position, topLimit, btmLimit) {
		if (!target)
		return false;

		var obj = target;
		obj.initTop = position;
		obj.topLimit = topLimit;
		obj.bottomLimit = document.documentElement.scrollHeight - btmLimit;

		obj.style.position = "absolute";
		obj.top = obj.initTop;
		obj.left = obj.initLeft;

		if (typeof(window.pageYOffset) == "number") {
		obj.getTop = function() {
		return window.pageYOffset;
		}
		} else if (typeof(document.documentElement.scrollTop) == "number") {
		obj.getTop = function() {
		return document.documentElement.scrollTop;
		}
		} else {
		obj.getTop = function() {
		return 0;
		}
		}

		if (self.innerHeight) {
		obj.getHeight = function() {
		return self.innerHeight;
		}
		} else if(document.documentElement.clientHeight) {
		obj.getHeight = function() {
		return document.documentElement.clientHeight;
		}
		} else {
		obj.getHeight = function() {
		return 500;
		}
		}

		obj.move = setInterval(function() {
		if (obj.initTop > 0) {
		pos = obj.getTop() + obj.initTop;
		} else {
		pos = obj.getTop() + obj.getHeight() + obj.initTop;
		//pos = obj.getTop() + obj.getHeight() / 2 - 15;
		}

		if (pos > obj.bottomLimit)
		pos = obj.bottomLimit;
		if (pos < obj.topLimit)
		pos = obj.topLimit;

		interval = obj.top - pos;
		obj.top = obj.top - interval / 3;
		obj.style.top = obj.top + "px";
		}, 30)
		}

function setPng24(obj) { 
    obj.width=obj.height=1; 
    obj.className=obj.className.replace(/\bpng24\b/i,''); 
    obj.style.filter = 
    "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+ obj.src +"',sizingMethod='image');" 
    return ''; 
	}