<!--

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/lifetree_off.jpg","../Images/lifetree_on.jpg");
preloadButtonSet(1,"../Images/earthscience_off.jpg","../Images/earthscience_on.jpg");
preloadButtonSet(2,"../Images/terrapin_off.jpg","../Images/terrapin_on.jpg");
preloadButtonSet(3,"../Images/home_off.gif","../Images/home_on.gif");
preloadButtonSet(4,"../Images/shopnow_off.gif","../Images/shopnow_on.gif");
preloadButtonSet(5,"../Images/retail_off.gif","../Images/retail_on.gif");
preloadButtonSet(6,"../Images/reps_off.gif","../Images/reps_on.gif");
preloadButtonSet(7,"../Images/contact_off.gif","../Images/contact_on.gif");
preloadButtonSet(8,"../Images/home_contact_off.gif","../Images/home_contact_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;
}


//->