window.addEvent('domready', function() {
	var IE6 = false;
	var strChUserAgent = navigator.userAgent;
	var intSplitStart = strChUserAgent.indexOf("(",0);
	var intSplitEnd = strChUserAgent.indexOf(")",0);
	var strChMid = strChUserAgent.substring(intSplitStart, intSplitEnd);
	if(strChMid.indexOf("MSIE 6") != -1){
		$$('.my_menu').each(function (el){
			el.addEvent('mouseover',function () {
				this.style.backgroundPosition = 'bottom left';
			});
			el.addEvent('mouseout',function () {
				this.style.backgroundPosition = 'top left';
			});
		});
	}
});