function selectTag(showContent,selfObj){
	var tag = document.getElementById("searchmenu").getElementsByTagName("li");
	var taglength = tag.length;
	for(i=0; i<taglength; i++){
		tag[i].className = "";
	}
	selfObj.parentNode.className = "focu";
	for(i=0; j=document.getElementById("baidu"+i); i++){
		j.style.display = "none";
	}
	document.getElementById(showContent).style.display = "block";
}

function showStm(n,m,p){
	for (i=0;i<=p;i++){
		 document.getElementById("stgm" + m + "_" + i).className = "tt" + m + "td";
		 document.getElementById("stm" + m + "_" + i).style.display = "none";
    }
	document.getElementById("stgm" + m + "_" + n).className = "tt" + m + "focu";
	document.getElementById("stm" + m + "_" + n).style.display = "block";
}