var searchUrl="/search.asp";
function changeSearch(s)
{
    //class change
    
   //end
    switch(s)
    {
       case 1:
         //document.getElementById("SaleClass").style.display="none";
         searchUrl="/search.asp";//产品
         changeSearchStyle(1);
         break;
       case 2:
         //document.getElementById("SaleClass").style.display="";
       	 searchUrl="/Download.asp";//下载
         changeSearchStyle(2);
         break;
       case 3:
         //document.getElementById("SaleClass").style.display="none";
         searchUrl="/SearchYenews.asp";//技术
         changeSearchStyle(3);
         break;
       case 4:
         //document.getElementById("SaleClass").style.display="none";
         searchUrl="/SearchNews.asp";//资讯
         changeSearchStyle(4);
         break;
      // case 5:
         //document.getElementById("SaleClass").style.display="none";
       //  searchUrl="/exhibition/t0/list_p1.html";//软件
       //  changeSearchStyle(5);
       //  break;
    }
}

function changeSearchStyle(s){
	var idValue = "";
	for(var i=1;i<=4;i++){
		idValue = "searchChose"+i;
		if(s==i)
			document.getElementById(idValue).className = "yes";
		else
			document.getElementById(idValue).className = "";
	}
}

function go(){
	var keys = document.getElementById("keys").value;
	keys = keys.replace(/(^[^\S]+)|([^\S]+$)/g,"");
	if(keys!=""){
		var f = document.getElementById("searchForm");
		//f.target = "_blank";
		f.action=searchUrl; 
	}
	return true;
}

//这个函数在屏蔽资讯类别时无效
function sSaleClassClass(p){
	switch(p)
    {
       case "1":
         searchUrl="/offer_sale/t0/list_p1.html";
         break;
       case "2":
       	 searchUrl="/offer_buy/t0/list_p1.html";
         break;
       case "3":
         searchUrl="/offer_Tender/t0/list_p1.html";
         break;
       default:
         f.action = "/offer_sale/t0/list_p1.html";
         break;
    }
}