表单中回车选择下一个文本框，兼容IE,Chrome

来源：互联网发布：乐乎记录生活编辑：程序博客网时间：2024/06/11 20:42

        document.onkeydown = function (evt) {            var isie = (document.all) ? true : false;            var key;            var srcobj;            if (isie) {                key = event.keyCode;                srcobj = event.srcElement;            }            else {                key = evt.which;                srcobj = evt.target;            }            if (key == 13 && srcobj.type != 'button' && srcobj.type != 'submit' && srcobj.type != 'reset' && srcobj.type != 'textarea' && srcobj.type != '') {                if (isie) {                    event.keyCode = 9;                }                else {                    var el = getNextElement(evt.target);                    if (el.type != 'hidden')                        el.focus();                    else                        while (el.type == 'hidden')                            el = getNextElement(el);                    el.focus();                    return false;                }            }        }        function getNextElement(field) {            var form = field.form;            for (var e = 0; e < form.elements.length; e++) {                if (field == form.elements[e])                    break;            }            return form.elements[++e % form.elements.length];        }