if (document.images){
nssa0 = new Image(); nssa0.src = "img/1a.gif";
nssa1 = new Image(); nssa1.src = "img/1b.gif";
nssb0 = new Image(); nssb0.src = "img/2a.gif";
nssb1 = new Image(); nssb1.src = "img/2b.gif";
nssc0 = new Image(); nssc0.src = "img/3a.gif";
nssc1 = new Image(); nssc1.src = "img/3b.gif";
nssd0 = new Image(); nssd0.src = "img/4a.gif";
nssd1 = new Image(); nssd1.src = "img/4b.gif";
nsse0 = new Image(); nsse0.src = "img/5a.gif";
nsse1 = new Image(); nsse1.src = "img/5b.gif";
nssf0 = new Image(); nssf0.src = "img/6a.gif";
nssf1 = new Image(); nssf1.src = "img/6b.gif";
nssg0 = new Image(); nssg0.src = "img/7a.gif";
nssg1 = new Image(); nssg1.src = "img/7b.gif";
nssh0 = new Image(); nssh0.src = "img/8a.gif";
nssh1 = new Image(); nssh1.src = "img/8b.gif";
nssi0 = new Image(); nssi0.src = "img/9a.gif";
nssi1 = new Image(); nssi1.src = "img/9b.gif";
nssj0 = new Image(); nssj0.src = "img/10a.gif";
nssj1 = new Image(); nssj1.src = "img/10b.gif";
nssk0 = new Image(); nssk0.src = "img/11a.gif";
nssk1 = new Image(); nssk1.src = "img/11b.gif";
nssl0 = new Image(); nssl0.src = "img/12a.gif";
nssl1 = new Image(); nssl1.src = "img/12b.gif";
nssm0 = new Image(); nssm0.src = "img/13a.gif";
nssm1 = new Image(); nssm1.src = "img/13b.gif";
}

function nsc0(name)
{if (document.images)
document.images[name].src = eval(name + '0.src');
}function nsc1(name)
{if (document.images)
document.images[name].src = eval(name + '1.src');}