function SetTop(){
		if (top.location != self.location) {
			top.location=self.location;
		}
	}

	function GotoUrl(UrlStr){
		window.location.href=UrlStr;
	}

	function CheckLogin(LogForm){
			if (LogForm.ucode.value=='' || LogForm.upass.value=='' ){
				alert('用户名和密码均不可为空!');
				return false;
			}
			else{
				return true;
			}
	}
	
	function SubKey(forms){
		if (forms.txtKey.value.length<1 || forms.txtKey.value=='请输入搜索关键词'){
			alert('请输入搜索关键词');
			return false;
		}else{
			return true;
		}
	}
	
	function DoZoom(con_id,size){
		document.getElementById(con_id).size=size;
	}
	
	function changeSubCon(con){
		var p_list=con.parentNode.getElementsByTagName("p");
		for (var i=0;i<p_list.length;i++){
			p_list[i].className="sub_tit";
		}
		con.className="sub_titD";
		var span_list=con.parentNode.parentNode.getElementsByTagName("span");
		for (var i=0;i<span_list.length;i++)
			span_list[i].className="sub_con";
		span_list[con.value].className="sub_conD";
	}