window.onload = function () {
var inputs = document.getElementsByTagName("input");
//alert(inputs instanceof Array);//false
for (var i = 0; i < inputs.length; i++) {
var input = inputs[i];
if (input.type == "button") {
input.onclick = btnClick;
}
}
}
function btnClick() {
var inputs = document.getElementsByTagName("input");
for (var i = 0; i < inputs.length; i++) {
if (inputs[i].type == "button") {
inputs[i].value = "哈哈";
}
}
//兼容IE和FF
var e;
if (typeof (event) == "undefined") {
e = arguments[0];
} else {
e = event;
}
if (e.target) {
e.target.value = "呜呜";
} else {
window.event.srcElement.value = "呜呜";
}
}
内容如下：
<input type="button" value="哈哈" /><br />
<input type="button" value="哈哈" /><br />
<input type="button" value="哈哈" /><br />
<input type="button" value="哈哈" /><br />
<input type="button" value="哈哈" /><br />
<input type="button" value="哈哈" /><br />
<input type="button" value="哈哈" /><br />
<input type="text" /><br />
<input type="text" /><br />
