var dental = "0"
var medical = "0"
var tooth = "0"
var pageident=""
var catident="none"
var off="1"

if (document.images) {
about_off = new Image(); about_off.src = "images/about.gif"
about_over = new Image(); about_over.src = "images/about_over.gif"
canal_off = new Image(); canal_off.src = "images/canal.gif"
canal_over = new Image(); canal_over.src = "images/canal_over.gif"
contact_off = new Image(); contact_off.src = "images/contact.gif"
contact_over = new Image(); contact_over.src = "images/contact_over.gif"
dental_off = new Image(); dental_off.src = "images/dental.gif"
dental_over = new Image(); dental_over.src = "images/dental_over.gif"
des_off = new Image(); des_off.src = "images/des.gif"
des_over = new Image(); des_over.src = "images/des_over.gif"
dessub_off = new Image(); dessub_off.src = "images/dessub.gif"
dessub_over = new Image(); dessub_over.src = "images/dessub_over.gif"
eq_off = new Image(); eq_off.src = "images/eq.gif"
eq_over = new Image(); eq_over.src = "images/eq_over.gif"
heal_off = new Image(); heal_off.src = "images/heal.gif"
heal_over = new Image(); heal_over.src = "images/heal_over.gif"
biginstr_off = new Image(); biginstr_off.src = "images/biginstr.gif"
biginstr_over = new Image(); biginstr_over.src = "images/biginstr_over.gif"
smallinstr_off = new Image(); smallinstr_off.src = "images/smallinstr.gif"
smallinstr_over = new Image(); smallinstr_over.src = "images/smallinstr_over.gif"
medical_off = new Image(); medical_off.src = "images/medical.gif"
medical_over = new Image(); medical_over.src = "images/medical_over.gif"
obt_off = new Image(); obt_off.src = "images/obt.gif"
obt_over = new Image(); obt_over.src = "images/obt_over.gif"
promo_off = new Image(); promo_off.src = "images/promo.gif"
promo_over = new Image(); promo_over.src = "images/promo_over.gif"
ster_off = new Image(); ster_off.src = "images/ster.gif"
ster_over = new Image(); ster_over.src = "images/ster_over.gif"
mster_off = new Image(); mster_off.src = "images/ster.gif"
mster_over = new Image(); mster_over.src = "images/ster_over.gif"
supplies_off = new Image(); supplies_off.src = "images/supplies.gif"
supplies_over = new Image(); supplies_over.src = "images/supplies_over.gif"
tooth_off = new Image(); tooth_off.src = "images/tooth.gif"
tooth_over = new Image(); tooth_over.src = "images/tooth_over.gif"
trash_off = new Image(); trash_off.src = "images/trash.gif"
trash_over = new Image(); trash_over.src = "images/trash_over.gif"
ttrash_off = new Image(); ttrash_off.src = "images/trash.gif"
ttrash_over = new Image(); ttrash_over.src = "images/trash_over.gif"
mdessub_off = new Image(); mdessub_off.src = "images/dessub.gif"
mdessub_over = new Image(); mdessub_over.src = "images/dessub_over.gif"
meq_off = new Image(); meq_off.src = "images/eq.gif"
meq_over = new Image(); meq_over.src = "images/eq_over.gif"
teq_off = new Image(); teq_off.src = "images/eq.gif"
teq_over = new Image(); teq_over.src = "images/eq_over.gif"
minstr_off = new Image(); minstr_off.src = "images/instr.gif"
minstr_over = new Image(); minstr_over.src = "images/instr_over.gif"
tinstr_off = new Image(); tinstr_off.src = "images/instr.gif"
tinstr_over = new Image(); tinstr_over.src = "images/instr_over.gif"
msupplies_off = new Image(); msupplies_off.src = "images/supplies.gif"
msupplies_over = new Image(); msupplies_over.src = "images/supplies_over.gif"
tsupplies_off = new Image(); tsupplies_off.src = "images/supplies.gif"
tsupplies_over = new Image(); tsupplies_over.src = "images/supplies_over.gif"
}

function start(tcatid,catid,pageid) {
 if (catid!="none" && tcatid!="none") {
 document.getElementById(tcatid).style.display = "";
 document[catid].src = eval(catid + "_over.src");
 catident=catid} else {catident=catid;}
 if (pageid!="none") {
 document[pageid].src = eval(pageid + "_over.src");}

 pageident=pageid;
}

function turn_off(ImageName) {
	if (document.images != null) {
   if (ImageName=="medical" && medical=="1") {medical="1";}
   else {if (ImageName=="dental" && dental=="1") {dental="1";} else { if (ImageName=="tooth" && tooth=="1") {tooth="1";} else { if (pageident==ImageName || catident==ImageName) {off=ImageName;} else { 
           document[ImageName].src = eval(ImageName + "_off.src");}}}}
	}
}
function turn_over(ImageName) {
	if (document.images != null) {
		document[ImageName].src = eval(ImageName + "_over.src");
	}
}
function show(which) {
    var check = document.getElementById(which)
    if (check.style.display=='none') {
    document.getElementById(which).style.display = '';
      var check1=which
             if (check1=="tdental") {dental="1";} else {if (check1=="tmedical") {medical="1";} else {if (check1=="ttooth") {tooth="1";}}}}
      else { document.getElementById(which).style.display = 'none';
      var check1=which
             if (check1=="tdental") {dental="0";} else {if (check1=="tmedical") {medical="0";} else {if (check1=="ttooth") {tooth="0";}}}}
}