//禁止按回车提交

1.  
2.       $(document).ready(function(){  
3.        $("input[@type='text']").each(  
4.             function(){  
5.                 $(this).keypress( function(e) {  
6.                         var key = window.event ? e.keyCode : e.which;  
7.                         if(key.toString() == "13"){  
8.                                     return false;  
9.   
10.                         }  
11.                 });  
12.             });  
13.         })