img_001 = new Image
img_001.src = "img/img_001.jpg"

img_002 = new Image
img_002.src = "img/img_002.jpg"

img_003 = new Image
img_003.src = "img/img_003.jpg"

img_004 = new Image
img_004.src = "img/img_004.jpg"

img_001ons = new Image
img_001ons.src = "img/img_001ons.jpg"

img_001on = new Image
img_001on.src = "img/img_001on.jpg"

img_002ons = new Image
img_002ons.src = "img/img_002ons.jpg"

img_002on = new Image
img_002on.src = "img/img_002on.jpg"

img_003ons = new Image
img_003ons.src = "img/img_003ons.jpg"

img_003on = new Image
img_003on.src = "img/img_003on.jpg"

img_004ons = new Image
img_004ons.src = "img/img_004ons.jpg"

img_004on = new Image
img_004on.src = "img/img_004on.jpg"

img_001bg = new Image
img_001bg.src = "img/img_001bg.jpg"

img_002bg = new Image
img_002bg.src = "img/img_002bg.jpg"

img_003bg = new Image
img_003bg.src = "img/img_003bg.jpg"

img_004bg = new Image
img_004bg.src = "img/img_004bg.jpg"
 			
var cymod0 = img_001on.src;
var cymod1 = img_002on.src;
var cymod2 = img_003on.src;
var cymod3 = img_004on.src;

var cymod0on = img_001ons.src;
var cymod1on = img_002ons.src;
var cymod2on = img_003ons.src;
var cymod3on = img_004ons.src;

function chgImg(img,newImg,num) {		
var newTemp = eval(newImg);	
var oldImage = document[img].src;	
var newTempStrip = newTemp.substring(newTemp.lastIndexOf("images/"));		
var oldImageStrip = oldImage.substring(oldImage.lastIndexOf("images/"));
			
if(newTempStrip != oldImageStrip){				
document[img].src= newTemp				
if(num == 0) {				
changeProp('url(img/img_001.jpg)');					
} else if(num == 1) {					
changeProp('url(img/img_002.jpg)');	
} else if(num == 2) {					
changeProp('url(img/img_003.jpg)');						
} else if(num == 3) {						
changeProp('url(img/img_004.jpg)');						
}			

showHero(num);			
}
}

function showHero(num){		
var heroImage=new Array()		
heroImage[0]='<img src="img/img_001bg.jpg" border="0" usemap="#cyberpro_001"/>';
heroImage[1]='<img src="img/img_002bg.jpg" border="0" usemap="#cyberpro_002"/>';
heroImage[2]='<img src="img/img_003bg.jpg" border="0" usemap="#cyberpro_003"/>';
heroImage[3]='<img src="img/img_004bg.jpg" border="0" usemap="#cyberpro_004"/>';

document.getElementById("imgBG").innerHTML=heroImage[num];}

function findObj(n) {
var x; 
var d=document; 
if(d.getElementById) x=d.getElementById(n); 
return x;}

function changeProp(theValue) {
var obj = findObj('modBG');
eval("obj."+'style.backgroundImage'+"='"+theValue+"'");
}

function swap0() {	
chgImg("mod3","cymod3",3);	
chgImg("mod1","cymod1",1);
chgImg("mod2","cymod2",2);
chgImg("mod0","cymod0on",0);}

function swap1() {	
chgImg("mod2","cymod2",2);	
chgImg("mod3","cymod3",3);
chgImg("mod0","cymod0",0);
chgImg("mod1","cymod1on",1);}

function swap2() {	
chgImg('mod0',"cymod0",0);	
chgImg('mod1',"cymod1",1);	
chgImg("mod3","cymod3",3);
chgImg('mod2',"cymod2on",2);}

function swap3() {
chgImg('mod0',"cymod0",0);
chgImg('mod1',"cymod1",1);
chgImg("mod2","cymod2",2);
chgImg('mod3',"cymod3on",3);}