function button_off ( imgId )
{
 if ( document.images )
 {
 butOff = eval ( imgId + "_off.src" );
 document.getElementById(imgId).src = butOff;
 }
}

function button_on ( imgId )
{
 if ( document.images )
 {
 butOn = eval ( imgId + "_on.src" );
 document.getElementById(imgId).src = butOn;
 }
}

if ( document.images )
{
 menu1_on = new Image ( );
 menu1_off = new Image ( );

 menu1_on.src = "_media/custom/menu_on_01.png";
 menu1_off.src = "_media/custom/menu_off_01.png";

 
 menu2_on = new Image ( );
 menu2_off = new Image ( );

 menu2_on.src = "_media/custom/menu_on_02.png";

 menu2_off.src = "_media/custom/menu_off_02.png";

 
 menu3_on = new Image ( );
 menu3_off = new Image ( );

 menu3_on.src = "_media/custom/menu_on_03.png";

 menu3_off.src = "_media/custom/menu_off_03.png";
 
 menu4_on = new Image ( );
 menu4_off = new Image ( );

 menu4_on.src = "_media/custom/menu_on_04.png";

 menu4_off.src = "_media/custom/menu_off_04.png";

 
 menu5_on = new Image ( );
 menu5_off = new Image ( );

 menu5_on.src = "_media/custom/menu_on_05.png";

 menu5_off.src = "_media/custom/menu_off_05.png";

 
 menu6_on = new Image ( );
 menu6_off = new Image ( );

 menu6_on.src = "_media/custom/menu_on_06.png";

 menu6_off.src = "_media/custom/menu_off_06.png";
 
 menu7_on = new Image ( );
 menu7_off = new Image ( );

 menu7_on.src = "_media/custom/menu_on_07.png";
 menu7_off.src = "_media/custom/menu_off_07.png";

 
}