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>
希望本文所述對大家的javascript程序設計有所幫助。
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