var locaUrl=""+document.location;
//alert(locaUrl);
var EngChannelUrl= new Array("english.caing.com/finance_economy","english.caing.com/industry","english.caing.com/politics_law","english.caing.com/environment","english.caing.com/society_culture","english.caing.com/opinion");
//alert(EngChannelUrl.length);
for(var i=0;i<EngChannelUrl.length;i++)
{         
if(locaUrl.indexOf(EngChannelUrl[i])>-1)
{
//alert(i);
document.getElementById("bgcolor"+i).className ="cur";
break;
}
}