function ok()
    {
           var colid=document.getElementById("ddl_colid").value;
           var SeaName=document.getElementById("Text1");
           if(SeaName.value.replace(/\s+/,'').length==0)
           {
                          
              alert("搜索关键字不能为空!");  
              SeaName.value='';   
              SeaName.focus();           
              return false;
           }
           else
           {
              SeaName.value=SeaName.value.replace(/\s+/,'');
              if(colid!="-1")
              {
                 window.open("product.aspx?cateid="+colid+"&title="+escape(SeaName.value));
              }
              else
              {
                 window.open("product.aspx?title="+escape(SeaName.value));
              }
              return false;
           }
     }