document.oncontextmenu=new Function('event.returnValue=false;');
document.onselectstart=new Function('event.returnValue=false;');


  function searchclick(){
    var url=document.getElementById("Text_search").value;
    var sou=document.getElementById("sou");
    sou.href="ProductType.aspx?ProductName="+url;
    }
    
    function MenuOver(obj)
           {
               if(obj.style.display=="none")
               {
                   obj.style.display="block";
               }
               else
               {
                   obj.style.display="none";
               }
           }