try<body >
<script language= "JavaScript " >
function img1(obj)
{
var img = document.getElementById("myimg");
img.src =obj.src;
img.style.display = "";
}
</script >
<div id= "Layer1 " style= "position:absolute; left:294px; top:112px; width:148px; height:67px; z-index:1 " >
<img id="myimg" style="display:none">
</div >
<table width= "136 " border= "0 " cellpadding= "0 " cellspacing= "0 " >
<!--DWLayoutDefaultTable-- >
<tr >
<td height= "109 " > </td >
<td valign= "top " > <img src= "gy/lmb.JPG " width= "154 " height= "200 " onMouseOver= "img1(this) " > </td >
</tr >
</table >
</body >
<script language= "JavaScript " >
function img1(obj)
{
var img = document.getElementById("myimg");
img.src =obj.src;
img.style.display = "";
}
</script >
<div id= "Layer1 " style= "position:absolute; left:294px; top:112px; width:148px; height:67px; z-index:1 " >
<img id="myimg" style="display:none">
</div >
<table width= "136 " border= "0 " cellpadding= "0 " cellspacing= "0 " >
<!--DWLayoutDefaultTable-- >
<tr >
<td height= "109 " > </td >
<td valign= "top " > <img src= "gy/lmb.JPG " width= "154 " height= "200 " onMouseOver= "img1(this) " > </td >
</tr >
</table >
</body >
function img1(object)
{
imag1=object.src;
href=location.href.substring(0,location.href.lastIndexOf("/")+1);
imag1=href+imag1;
}