Code to simulate pop-up menu_javascript skills

After clicking the "Pay for yourself" button, a modal div pops up. After clicking the OK button, a row of records is added to the table; similarly, clicking the "Pay for others" button also adds another row of records. But it works under IE6 and IE7, but not under FF. Is there any way?

<title>Payment Center-Fill in information</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <style type="text/css"> #testa,#testa2 { width:100%; } #lockform,#lockform2 { position:absolute; width:expression(this.parentNode.scrollWidth); top:expression(this.parentNode.scrollTop); left:0; height:100%; right:0; bottom:0; z-index:1; background:gray; filter:alpha(opacity=92); } #main,#main2 { width:400px; position:absolute; left:expression(this.parentNode.scrollWidth/2-200); top:100px; background:#efefef; text-align:left; filter:Alpha(opacity=100); } #InfoHead,#InfoHead2 { text-align:right; padding:3px 0 1px 3px; border:1px solid #f90; background:url(../images/lockform_title.gif) repeat-x; color:#36f; cursor:move; } #InfoHead a:link,#InfoHead a:visited,#InfoHead2 a:link,#InfoHead2 a:visited { font-size:14px; font-weight:bold; padding:0 3px; } #InfoBody,#InfoBody2 { border:4px double #f90; border-top:none; padding:2px; } #InfoContent { height:200px; padding:6px; overflow:auto; word-break:break-all; } #InfoContent2 { height:297px; padding:6px; overflow:auto; word-break:break-all; } </style> <div id="testa"> <form name="Form1"> <div id="pay_content_top2"> </div> <div id="content"> <div class="align_center"> <table class="width_660"> <tr> <td class="activate_title"> <img src="/static/imghw/default1.png" data-src="images/li.gif" class="lazy" alt=""> 濉</td> </tr> </table> </div> </div> </form> </div>