function extractPageName(hrefString)
{var arr=hrefString.split('/');return(arr.length<2)?hrefString:arr[arr.length-2].toLowerCase()+arr[arr.length-1].toLowerCase();}
function setPage()
{hrefString=document.location.href?document.location.href:document.location;crtPage=extractPageName(hrefString)
arrSubNav=document.getElementById("home_left").getElementsByTagName("a")
for(var i=0;i<arrSubNav.length;i++)
{if(extractPageName(arrSubNav[i].href)==crtPage)
{arrSubNav[i].className="current";}}}