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/news_off.gif","images/news_on.gif");
preloadButtonSet(1,"images/who_off.gif","images/who_on.gif");
preloadButtonSet(2,"images/meetings_off.gif","images/meetings_on.gif");
preloadButtonSet(3,"images/founders_off.gif","images/founders_on.gif");
preloadButtonSet(4,"images/reflections_off.gif","images/reflections_on.gif");
preloadButtonSet(5,"images/safety_off.gif","images/safety_on.gif");
preloadButtonSet(6,"images/legislation_off.gif","images/legislation_on.gif");
preloadButtonSet(7,"images/safe_routes_off.gif","images/safe_routes_on.gif");
preloadButtonSet(8,"images/current_projects_off.gif","images/current_projects_on.gif");
preloadButtonSet(9,"images/downloads_off.gif","images/downloads_on.gif");
preloadButtonSet(10,"images/forms_off.gif","images/forms_on.gif");
preloadButtonSet(11,"images/treasurers_off.gif","images/treasurers_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;
}