var ver = navigator.appVersion;
var agent = navigator.userAgent;
var ap = navigator.appName;
var Mac = ver.indexOf('Mac',0) != -1;
var IE = ap.indexOf("Microsoft Internet Explorer",0) != -1;
var MIE5 = ((Mac && ap.indexOf('MSIE 5',0) != -1) || (Mac && IE && parseInt(ver) >= 4));

function initfooter(){
	if(MIE5){
		pagemax=document.getElementsByTagName('body')[0].offsetHeight;
		
		showLayer('floatmenuclick');
		hideLayer('floatmenu');		
	}
}
function menufix(){
	if(MIE5){
		pagemax=document.getElementsByTagName('body')[0].offsetHeight;
		if((document.body.scrollTop+document.body.clientHeight)<pagemax){
			document.all('floatmenuclick').style.pixelTop=document.body.scrollTop+document.body.clientHeight-31;
		}else{
			document.all('floatmenuclick').style.pixelTop=pagemax-31;
		}
	}
}
window.onscroll = menufix;