请问怎样修改以下的javascript?
下面的是一打开ie就弹出一个框的,但我不想一开ie就弹出框,而是鼠标经过按钮popout才弹出框,是经过,不是按下,请问怎样修改?
<html>
<head>
<script language="JavaScript1.2">
function initializedrag(e){
crossobj=document.all? document.getElementById("showimage") : document.all
}
document.onmousedown=initializedrag
function hidebox(){
crossobj.style.visibility="hidden"
}
</script>
<div id="showimage" style="position:absolute;width:250px;left:500;top:250">
<table border="0" width="250" bgcolor="#000080" cellspacing="0" cellpadding="2">
<tr>
<td width="100%"><table border="0" width="100%" cellspacing="0" cellpadding="0"
height="36">
<tr>
<td width="100%"></td>
<td style="cursor:hand"><a href="#" onClick="hidebox();return false"><img src="close.gif"
width="16" height="14" border=0></a></td>
</tr>
<tr>
<td width="100%" bgcolor="#FFFFFF" style="padding:4px" colspan="2">
Testing 1 2 3
</td>
</tr>
</table>
</td>
</tr>
</table>
</div>
<a href="#" onmouseover="popout()">popout</a>
</body>
</html>