function OptRoll (id) { 
var imglst, imglst2, base, dir, placeholder,regmatch;
imglst=['ad_programs_magazines_off.gif','ad_programs_atlanta_sa_off.gif','ad_programs_custom_va_off.gif'];
imglst2=['ad_programs_magazines_roll.gif','ad_programs_atlanta_sa_roll.gif','ad_programs_custom_va_roll.gif'];
base="options"+id;
dir="/images/ad_programs/";
placeholder=dir+imglst[id];
regmatch=new RegExp(placeholder);
if (regmatch.test(document.images[base].src)) {
document.images[base].src=dir+imglst2[id];
} else { 
document.images[base].src=placeholder;
}
}

function OptPreload () {
var tmpm,image,imglst2,dir;
imglst2=['ad_programs_magazines_roll.gif','ad_programs_atlanta_sa_roll.gif','ad_programs_custom_va_roll.gif'];
dir="/images/ad_programs/";
for(tmp=0;tmp<imglst2.length;++tmp) {
image=new Image();
image.src=dir+imglst2[tmp];
}
}