javascript鼠標滑動評分控件完整實例

2024-05-06 16:20:09

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這篇文章主要介紹了javascript鼠標滑動評分控件實現方法,以完整實例形式詳細分析了javascript操作鼠標事件及頁面元素樣式實現評分效果的方法,需要的朋友可以參考下

本文實例講述了javascript鼠標滑動評分控件。分享給大家供大家參考。具體實現方法如下：

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>javascript鼠標滑動控件</title>

<script type="text/javascript">

function ArrayIndexof(arr, inElement) {

for (var i = 0; i < arr.length; i++) {

if (arr[i] == inElement) {

return i;

}

}

return -1;

}

function GetTDS() {

var tbl = document.getElementById("tblMain");

var tds = tbl.getElementsByTagName("td");

return tds;

}

function iniEvent() {

var tds = GetTDS();

for (var i = 0; i < tds.length; i++) {

td = tds[i];

td.onmouseover = TdOnMouseOver;

}

var tbl = document.getElementById("tblMain");

tbl.onmouseout = TableMouseOut;

}

function SetRating(tdTmp) {

var tds = GetTDS();

var index = ArrayIndexof(tds, tdTmp);

for (var i = 0; i <= index; i++) {

td = tds[i];

td.innerHTML = "★";

}

for (var i = index + 1; i < tds.length; i++) {

td = tds[i];

td.innerHTML = "☆";

}

}

function TdOnMouseOver() {

SetRating(this);

}

//鼠標離開表格后自動清除

function TableMouseOut() {

var tds = GetTDS();

for (var i = 0; i < tds.length; i++) {

td = tds[i];

td.innerHTML = "☆";

}

}

</script>

</head>

<body onload="iniEvent()">

<table id="tblMain" border="1">

<tr>

<td>☆</td>

<td>☆</td>

<td>☆</td>

<td>☆</td>

<td>☆</td>

</tr>

</table>

</body>

</html>