回车提交表单

document.onkeydown = function (e) {
if (!e) e = window.event; //火狐中是 window.event
if ((e.keyCode || e.which) == 13) {
//Save(); //提交表单
}
}

<script type="text/javascript">
if (document.addEventListener) {//如果是Firefox
document.addEventListener("keypress", fireFoxHandler, true);
} else {
document.attachEvent("onkeypress", ieHandler);
}
function fireFoxHandler(evt) {
//alert("firefox");
if (evt.keyCode == 13) {
document.forms[0].submit();
}
}
function ieHandler(evt) {
//alert("IE");
if (evt.keyCode == 13) {
document.forms[0].submit();
}
}
</script>