<mce:script language="javascript" type="text/javascript"><!-- 
 //禁用Enter键表单自动提交 
  document.onkeydown = function(event) { 
   var target, code, tag; 
   if (!event) { 
    event = window.event; //针对ie浏览器 
    target = event.srcElement; 
    code = event.keyCode; 
    if (code == 13) { 
     tag = target.tagName; 
     if (tag == "TEXTAREA") { return true; } 
     else { return false; } 
    } 
   } 
   else { 
    target = event.target; //针对遵循w3c标准的浏览器，如Firefox 
    code = event.keyCode; 
    if (code == 13) { 
     tag = target.tagName; 
     if (tag == "INPUT") { return false; } 
     else { return true; } 
    } 
   } 
  }; 
  
// --></mce:script>