动态监测input标签
oninput="OnInput (event)" onpropertychange="OnPropChanged (event)"
<script type="text/javascript">
// Firefox, Google Chrome, Opera, Safari, Internet Explorer from version 9
function OnInput (event) {
// alert ("The new content: " + event.target.value);
var sum=event.target.value;
document.getElementById("avenum").innerHTML=(sum*4/96).toFixed(2);
}
// Internet Explorer
function OnPropChanged (event) {
if (event.propertyName.toLowerCase () == "value") {
//alert ("The new content: " + event.srcElement.value);
var sum=event.srcElement.value;
document.getElementById("avenum").innerHTML=(sum*4/96).toFixed(2);
}
}
// 改变默认值ya
function pre (event) {
event.style.color = "black";
event.value="";
}
</script>