if (document.images) {
//home
pho_on = new Image();	pho_on.src = "images/roll/photos_on.gif";
pho_off = new Image();	pho_off.src = "images/roll/photos_off.gif";
vid_on = new Image();	vid_on.src = "images/roll/video_on.gif";
vid_off = new Image();	vid_off.src = "images/roll/video_off.gif";
poe_on = new Image();	poe_on.src = "images/roll/poems_on.gif";
poe_off = new Image();	poe_off.src = "images/roll/poems_off.gif";
blo_on = new Image();	blo_on.src = "images/roll/blog_on.gif";
blo_off = new Image();	blo_off.src = "images/roll/blog_off.gif";

//sub
spho_on = new Image();	spho_on.src = "images/roll/sphotos_on.gif";
spho_off = new Image();	spho_off.src = "images/roll/sphotos_off.gif";
svid_on = new Image();	svid_on.src = "images/roll/svideo_on.gif";
svid_off = new Image();	svid_off.src = "images/roll/svideo_off.gif";
spoe_on = new Image();	spoe_on.src = "images/roll/spoems_on.gif";
spoe_off = new Image();	spoe_off.src = "images/roll/spoems_off.gif";
sblo_on = new Image();	sblo_on.src = "images/roll/sblog_on.gif";
sblo_off = new Image();	sblo_off.src = "images/roll/sblog_off.gif";
}

function swapem(sname,lname) {
sname.src = lname.src;
}