<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body οnlοad="initEvent()">
<table id="tableRating"><tr><td>❤</td><td>❤</td><td>❤</td><td>❤</td><td>❤</td></tr></table>
</body>
</html>
<script type="text/javascript">
function initEvent() {
var tableRating = document.getElementById('tableRating');
var tds = tableRating.getElementsByTagName('td');
for (var i = 0; i < tds.length; i++) {
var td = tds[i];
td.onclick = TdOnclick;
td.style.cursor = "pointer";
}
}
function indexof(arr, element) {
for (var i = 0; i < arr.length; i++) {
if (arr[i] == element)
return i;
}
return -1;
}
function TdOnclick() {
var tableRating = document.getElementById('tableRating');
var tds = tableRating.getElementsByTagName('td');
var index = indexof(tds, this);
for (var i = 0; i <= index; i++) {
tds[i].style.background = "red";
}
for (var i = index + 1; i < tds.length; i++) {
tds[i].style.background = "white";
}
}
</script>用JQ改進···········
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<script src="Js/jquery-1.6.2.js" type="text/javascript"></script>
<title></title>
</head>
<body>
<table id="ratings"><tr><td></td><td></td><td></td><td></td><td></td></tr></table>
</body>
</html>
<script type="text/javascript">
$(function () {
$("#ratings td").html("☆").mouseover(function () { $("#ratings td").html("★"); $(this).nextAll().html("☆"); });
});
</script>
