JavaScript 禁止按 enter 回车键触发页面的onsubmit事件
<script>
//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、Chrome
code = event.keyCode;
if (code == 13) {
tag = target.tagName;
if (tag == "INPUT") { return false; }
else { return true; }
}
}
};
</script>
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