function search(){
	var type=document.getElementById("ddlType").value;
	var link="search.aspx?t="+type;
	if(document.getElementById("txtKey").value!="")
		link+="&k="+document.getElementById("txtKey").value
	if(document.getElementById("ddlSite").value!="")
		link+="&s="+document.getElementById("ddlSite").value

	
	if (location.hostname=="edu.eastday.com"&&location.pathname=="/yanxiu/search.aspx")
	 {
	 top.location=link;
	}
	else
	{
	window.open(link);	
	}
}