.IP_thumbnail{
position: relative;
z-index: 0;
}

.IP_thumbnail:hover{
background-color: transparent;
z-index: 0;
}

.IP_thumbnail span{ /*CSS for enlarged image*/
position: absolute;
background-color: lightyellow;
padding: 5px;
left: -1000px;
border: 1px dashed gray;
visibility: hidden;
color: black;
text-decoration: none;
z-index: 50;
}

.IP_thumbnail span img{ /*CSS for enlarged image*/
border-width: 0;
padding: 2px;
z-index: 50;
}

.IP_thumbnail:hover span{ /*CSS for enlarged image on hover*/
visibility: visible;
top: -400px;
left: -630px; /*position where enlarged image should offset horizontally */
z-index: 50;
}

/*Credits: Dynamic Drive CSS Library */
/*URL: http://www.dynamicdrive.com/style/ */

.IP_BigThumbnailRight{
position: relative;
z-index: 10;
}

.IP_BigThumbnailRight:hover{
background-color: transparent;
z-index: 10;
}

.IP_BigThumbnailRight span{ /*CSS for enlarged image*/
position: absolute;
background-color: lightyellow;
padding: 5px;
left: -1000px;
border: 1px dashed gray;
visibility: hidden;
color: black;
text-decoration: none;
z-index: 2000;
}

.IP_BigThumbnailRight span img{ /*CSS for enlarged image*/
border-width: 0;
padding: 2px;
z-index: 2000;
}

.IP_BigThumbnailRight:hover span{ /*CSS for enlarged image on hover*/
visibility: visible;
top: -140px;
left: 95px; /*position where enlarged image should offset horizontally */
z-index: 2000;
}

/*Credits: Dynamic Drive CSS Library */
/*URL: http://www.dynamicdrive.com/style/ */

.IP_BigThumbnailLeft{
position: relative;
z-index: 10;
}

.IP_BigThumbnailLeft:hover{
background-color: transparent;
z-index: 10;
}

.IP_BigThumbnailLeft span{ /*CSS for enlarged image*/
position: absolute;
background-color: lightyellow;
padding: 5px;
left: -1000px;
border: 1px dashed gray;
visibility: hidden;
color: black;
text-decoration: none;
z-index: 2000;
}

.IP_BigThumbnailLeft span img{ /*CSS for enlarged image*/
border-width: 0;
padding: 2px;
z-index: 2000;
}

.IP_BigThumbnailLeft:hover span{ /*CSS for enlarged image on hover*/
visibility: visible;
top: -100px;
left: -315px; /*position where enlarged image should offset horizontally */ 
z-index: 2000;
}