var browser = navigator.appName;
if(browser == "Microsoft Internet Explorer") {
	document.getElementById('contentmain').style.marginLeft="100px";
}
function goBack(){
	window.history.back();
}
function mouseOver(){
	document.getElementById('goback').style.color="#999999";
}
function mouseOut(){
	document.getElementById('goback').style.color="#CCCCCC";
}
document.getElementById('nav_'+name).style.color="#999999";