JavaScript阻止浏览器默认事件，并将回车更改为TAB效果

function disableKeys(eve) {

var ev = (document.all) ? window.event : eve;

var evCode = (document.all) ? ev.keyCode : ev.which;

var srcElement = (document.all) ? ev.srcElement : ev.target;

if (evCode == 13) {//将回车效果更改为TAB

evCode = 9;

}

if (srcElement.type != "textarea" && srcElement.type != "text") {

if (evCode == 8) {

return false;

}

}

else {

if (srcElement.readOnly) {

return false;

}

}

}

(document.all) ? (document.onkeydown = disableKeys) : (document.onkeypress = disableKeys);