var mess = new Array(
'<td width="410" valign="top"><img border="0" src="images/scene_1.jpg" width="410" height="410"></td>',
'<td width="410" valign="top"><img border="0" src="images/scene_2.jpg" width="410" height="410"></td>',
'<td width="410" valign="top"><img border="0" src="images/scene_3.jpg" width="410" height="410"></td>',
'<td width="410" valign="top"><img border="0" src="images/scene_4.jpg" width="410" height="410"></td>',
'<td width="410" valign="top"><img border="0" src="images/scene_5.jpg" width="410" height="410"></td>',
'<td width="410" valign="top"><img border="0" src="images/scene_6.jpg" width="410" height="410"></td>',
'<td width="410" valign="top"><img border="0" src="images/scene_7.jpg" width="410" height="410"></td>');
var max = mess.length;
var num = Math.floor((Math.random() * max));
document.writeln(mess[num]);