var darkened_pics = new Array();
var lighted_pics = new Array();


function preloadButtonSet(num,dark,light) {
 darkened_pics[num] = new Image();
 darkened_pics[num].src = dark;
 lighted_pics[num] = new Image();
 lighted_pics[num].src = light;
}

preloadButtonSet(0,"Images/home_off.gif","Images/home_on.gif");
preloadButtonSet(1,"Images/history_off.gif","Images/history_on.gif");
preloadButtonSet(2,"Images/contactus_off.gif","Images/contactus_on.gif");
preloadButtonSet(3,"Images/map_off.gif","Images/map_on.gif");
preloadButtonSet(4,"Images/meetings_off.gif","Images/meetings_on.gif");
preloadButtonSet(5,"Images/upcoming_off.gif","Images/upcoming_on.gif");
preloadButtonSet(6,"Images/past_off.gif","Images/past_on.gif");
preloadButtonSet(7,"Images/newsletters_off.gif","Images/newsletters_on.gif");
preloadButtonSet(8,"Images/schedule_off.gif","Images/schedule_on.gif");
preloadButtonSet(9,"Images/rulesfees_off.gif","Images/rulesfees_on.gif");
preloadButtonSet(10,"Images/specs_off.gif","Images/specs_on.gif");
preloadButtonSet(11,"Images/financial_off.gif","Images/financial_on.gif");
preloadButtonSet(12,"Images/budget_off.gif","Images/budget_on.gif");
preloadButtonSet(13,"Images/reports_off.gif","Images/reports_on.gif");
preloadButtonSet(14,"Images/affiliations_off.gif","Images/affiliations_on.gif");
preloadButtonSet(15,"Images/hearings_off.gif","Images/hearings_on.gif");

function lighten(num) {
 if (document.images)
  eval("document.button"+num+".src = lighted_pics["+num+"].src;");
 return false;
}
function darken(num) {
 if (document.images)
  eval("document.button"+num+".src = darkened_pics["+num+"].src;");
 return false;
}