var imgPreLoad = false;
var selA;
var dataobj;

//############################################################
function selectA(Alx){
   changeImages('image'+selA,'image'+selA+'off')
   selA=Alx;
   changeImages('image'+selA,'image'+selA+'on');
}
//############################################################
function setHeight(xxx){

	if (xxx==1) {tmp=960;}	//úvod
	if (xxx==2) {tmp=900;}	//kontakty
	if (xxx==3) {tmp=800;}  //archiv
	if (xxx==4) {tmp=3600;}  //downloads
	if (xxx==5) {tmp=850;}  //projekty
	if (xxx==6) {tmp=900;}  //odkazy
	if (xxx==16) {tmp=900;}  //historie

	if (xxx==7) {tmp=2100;}   //cardhalia
	if (xxx==8) {tmp=1050;}   //secret
	if (xxx==9) {tmp=800;}    //planeta
	if (xxx==10) {tmp=1250;}  //zezlo
	if (xxx==11) {tmp=1050;}  //leviathan
	if (xxx==12) {tmp=1150;}  //lospiratos
	if (xxx==13) {tmp=1000;}  //lifeboat
	if (xxx==14) {tmp=1000;}  //voagelisovy svitky
	if (xxx==15) {tmp=1000;}  //dungeon
	if (xxx==17) {tmp=2800;}  //cardhalia2
        
	dataobj=document.all? parent.document.all.fre : parent.document.getElementById("fre");
	dataobj.style.height=tmp;
}
//############################################################

function changeImages() { 	
   if (document.images && imgPreLoad) {
	if (changeImages.arguments[2] != selA) {
	   document[changeImages.arguments[0]].src = eval(changeImages.arguments[1] + ".src");
	}
   }
}

//############################################################

if(document.images) {
	// on images
	image1on = new Image();
	image1on.src = "data/pics/historieh.gif";
	image2on = new Image();
	image2on.src = "data/pics/downloadsh.gif";
	image3on = new Image();
	image3on.src = "data/pics/uvodh.gif";
	image4on = new Image();
	image4on.src = "data/pics/projektyh.gif";
	image5on = new Image();
	image5on.src = "data/pics/odkazyh.gif";
	image6on = new Image();
	image6on.src = "data/pics/forumh.gif";
	image7on = new Image();
	image7on.src = "data/pics/kontakth.gif";
	
	// off images
	image1off = new Image();
	image1off.src = "data/pics/historie.gif";
	image2off = new Image();
	image2off.src = "data/pics/downloads.gif";
	image3off = new Image();
	image3off.src = "data/pics/uvod.gif";
	image4off = new Image();
	image4off.src = "data/pics/projekty.gif";
	image5off = new Image();
	image5off.src = "data/pics/odkazy.gif";
	image6off = new Image();
	image6off.src = "data/pics/forum.gif";
	image7off = new Image();
	image7off.src = "data/pics/kontakt.gif";
	
	imgPreLoad = true;
}
//############################################################