function resetbg(id){
	var txt = document.getElementById("tag2").value;
	if(id==2){
		document.getElementById("tag2").style.background = "";
	}
	if(id==1 && txt==''){
		document.getElementById("tag2").style.background = "url(http://www.diypu.com/images/so_logo.gif) no-repeat 0px";
	}
}




function dos2(){
    var s = document.getElementById("tag2").value;
    if(s=="")
        alert("搜索内容不能为空，请重新输入 ^_^");
    else if(s.indexOf(" ") >= 0)
        alert("空格不行哦，请重新输入 ^_^");
    else
                window.location.href = "/Search.aspx?tag="+escape(s);
}
function kd2(evt){
	var evt = window.event?window.event:evt;
	if(evt.keyCode==13)
	{
		dos2();
	}
}


function showTab(s,l,v)
{
	for(var i=0;i<l;i++)
	{
		document.getElementById(s+"t"+i).className=s+"t0";
		document.getElementById(s+"v"+i).style.display="none";
	}
	document.getElementById(s+"t"+v).className=s+"t1";
	document.getElementById(s+"v"+v).style.display="";
}