function onsearch()
		{
			if (document.form.Keyword.value == "请输入关键字")
			{
				//alert (document.form.Keyword.value);
				document.form.Keyword.value = "";
				document.form.Keyword.style.color = "#000";
			}
			else
			{
				document.form.Keyword.style.color = "#000";
			}
		}
		function qusearch()
		{
			if (document.form.Keyword.value != "请输入关键字")
			{
				document.form.Keyword.style.color = "#9e9e9e";
			}
		}
		function onclick1()
		{
			document.getElementById("mainnav_input2").style.display = "block";
		}
		function quclick123()
		{
			document.getElementById("mainnav_input2").style.display = "none";
		}
		function fill(obj,SelectId)
		{
			document.form.Select.value=obj.innerHTML;
			document.form.Typeid.value=SelectId;
			document.getElementById("mainnav_input2").style.display = "none";
			return false;
		}
		
		   function gotoclick(tag)
   {
   //	alert(y);
		for(i=1;i<=10;i++)
	{
		if ("tag"+i==tag)
		{
			document.getElementById("tag"+i).getElementsByTagName("a")[0].className="lefttab"+i;
			document.getElementById("tag"+i).getElementsByTagName("a")[0].getElementsByTagName("span")[0].className="righttab"+i;
			document.getElementById("menu_tabcon"+i).style.display = "block";
		}else{
			document.getElementById("tag"+i).getElementsByTagName("a")[0].className="";
			document.getElementById("tag"+i).getElementsByTagName("a")[0].getElementsByTagName("span")[0].className="";
			document.getElementById("menu_tabcon"+i).style.display = "none";
		}
	}
}
function login_onsubmit() {
if (document.form.Keyword.value=="" || document.form.Keyword.value=="请输入关键字")
	{
	  alert("请输入查询的关键词 !")
	  //document.form.keyword.focus()
	  return false
	 }
}