<!--
 no1 = new Image;
 no1.src = "_images/gfx/snav1_1.gif"; 
 ro1 = new Image;
 ro1.src = "_images/gfx/snav1_1_on.gif";
 
 no2 = new Image;
 no2.src = "_images/gfx/snav1_2.gif"; 
 ro2 = new Image;
 ro2.src = "_images/gfx/snav1_2_on.gif";
 
 no3 = new Image;
 no3.src = "_images/gfx/snav1_3.gif"; 
 ro3 = new Image;
 ro3.src = "_images/gfx/snav1_3_on.gif";
 
 
 
 no21 = new Image;
 no21.src = "_images/gfx/snav2_1.gif"; 
 ro21 = new Image;
 ro21.src = "_images/gfx/snav2_1_on.gif";
 
 no22 = new Image;
 no22.src = "_images/gfx/snav2_2.gif"; 
 ro22 = new Image;
 ro22.src = "_images/gfx/snav2_2_on.gif";
 
 no23 = new Image;
 no23.src = "_images/gfx/snav2_3.gif"; 
 ro23 = new Image;
 ro23.src = "_images/gfx/snav2_3_on.gif";
 
 no24 = new Image;
 no24.src = "_images/gfx/snav2_4.gif"; 
 ro24 = new Image;
 ro24.src = "_images/gfx/snav2_4_on.gif";
 
//-->