js高亮字显示的问题

        function Find(Ftext)
        {
        //var dr=/'+Ftext+'/gi;
var dr = new RegExp("("+Ftext+")",["gi"])
document.getElementById("txt").innerHTML = document.getElementById("txt").innerHTML.replace(dr,"<font color=red>$1</font>");         }

解决方案 »

  1.   


    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
    <title>无标题文档</title>
    </head><body>
        <script language="javascript">
            function Find(Ftext)
            {
    var dr = new RegExp("("+Ftext+")","ig");
    document.getElementById("txt").innerHTML = document.getElementById("txt").innerHTML.replace(dr,"<font color=red>$1</font>");         }
    </script>
    <form id="form1" name="form1" method="post" action="">
      <div id="txt">在有这些关键字:美容,生活,购物</div>
      <input type="button" name="button" id="button" value="搜索"  onclick="Find(document.getElementById('textfield').value)"/>
      <input type="text" name="textfield" id="textfield" />
    </form>
    </body>
    </html>