<!--
//----pre-caching images
if (document.images) {

aboutoff = new Image()
aboutoff.src = "images/circle_a_off.gif"
abouton = new Image()
abouton.src = "images/circle_a_on.gif"

servicesoff = new Image()
servicesoff.src = "images/circle_s_off.gif"
serviceson = new Image()
serviceson.src = "images/circle_s_on.gif"

eyewearoff = new Image()
eyewearoff.src = "images/circle_e_off.gif"
eyewearon = new Image()
eyewearon.src = "images/circle_e_on.gif"

locationsoff = new Image()
locationsoff.src = "images/circle_l_off.gif"
locationson = new Image()
locationson.src = "images/circle_l_on.gif"

contactoff = new Image()
contactoff.src = "images/circle_c_off.gif"
contacton = new Image()
contacton.src = "images/circle_c_on.gif"
}
function imageon(imgName){
        if (document.images) {
document[imgName].src = eval(imgName + 'on.src')
}}
function imageoff(imgName){
        if (document.images) {
document[imgName].src = eval(imgName + 'off.src')
}}
// end Helpers -->