function replaceOnKeyPress()
{
  var theFunction = "SD06736D6_Submit();";
  var theInputID = "ctl00_PlaceHolderSearchArea_SearchBox_InputKeywords";
 
  var txt = document.getElementById(theInputID);
  var browser = navigator.appName;

    txt.onkeypress = function(e){ 
          var bt = document.getElementById(theInputID);      
          if (typeof bt == 'object'){ 
                if(navigator.appName.indexOf("Netscape")>(-1)){ 
                      if (e.keyCode == 13){ 
                            eval(theFunction);
                            return false; 
                      } 
                } 
                if (navigator.appName.indexOf("Microsoft Internet Explorer")>(-1)){ 
                      if (event.keyCode == 13){ 
 
                            eval(theFunction);
                            return false; 
                      } 
                } 
          } 
    }
}
replaceOnKeyPress();