文本框焦点自动跳转及通过回车键提交表单的几种代码 < script language = " javascript " for = " document " event = " onkeydown " > <!-- // 回车换行 if (event.keyCode == 13 && event.srcElement.id == " tbKey " ) {event.keyCode == 13 ; return ;} if (event.keyCode == 13 && event.srcElement.type != 'button' && event.srcElement.type != 'submit' && event.srcElement.type != 'reset' && event.srcElement.type != 'textarea' && event.srcElement.type != '') event.keyCode = 9 ; --> </ script > < script language = " javascript " for = " document " event = " onkeydown " > <!-- // 回车换行 if (event.keyCode == 13 && event.srcElement.type != 'button' && event.srcElement.type != 'submit' && event.srcElement.type != 'reset' && event.srcElement.type != 'textarea' && event.srcElement.type != '') document.getElementById( " tbnDone " ).click(); --> </ script >