function newsShowHide(tabName,_obj)//点击单元格查看内容
{
	var newsTD=document.getElementsByTagName("div");
	var obj=document.getElementById(_obj);
	if(obj.style.display=="none"){
		for(i=0;i<newsTD.length;i++){	
			if(newsTD[i].id.indexOf(tabName+"news")!=-1){
				newsTD[i].style.display="none";
			}
		}
		obj.style.display="";
	}
	else if(obj.style.display!="none"){
		obj.style.display="none";
	}
}
function changeTdContent(obj1,obj2){
	document.getElementById(obj1).style.display="none";
	document.getElementById(obj2).style.display="";
}