oneon = new Image(); oneon.src = 'images/sbutton1_hover.gif';
oneoff = new Image(); oneoff.src = 'images/sbutton1.gif';

twoon = new Image(); twoon.src = 'images/sbutton2_hover.gif';
twooff = new Image(); twooff.src = 'images/sbutton2.gif';

threeon = new Image(); threeon.src = 'images/sbutton3_hover.gif';
threeoff = new Image(); threeoff.src = 'images/sbutton3.gif';

fouron = new Image(); fouron.src = 'images/button1_hover.gif';
fouroff = new Image(); fouroff.src = 'images/button1.gif';

fiveon = new Image(); fiveon.src = 'images/button2_hover.gif';
fiveoff = new Image(); fiveoff.src = 'images/button2.gif';

sixon = new Image(); sixon.src = 'images/button3_hover.gif';
sixoff = new Image(); sixoff.src = 'images/button3.gif';

sevenon = new Image(); sevenon.src = 'images/button4_hover.gif';
sevenoff = new Image(); sevenoff.src = 'images/button4.gif';