JS捕获回车事件

		document.onkeydown = function(event_e){  
	         if(window.event)  
	          event_e = window.event;  
	          var int_keycode = event_e.charCode||event_e.keyCode;  
	          if(int_keycode ==13){ 
	        	  $('#queryForList').click();
	    		}
	   	}