var siteRoot
siteRoot = "../images/global/"

loadcheck = 0;
defaultStatus = " "
function preload() {
loadcheck = 1;
   menu = new Array()
   
        menu[1] =  siteRoot + "nav_exhibitions_on.gif";        
		menu[2] =  siteRoot + "nav_exhibitions_off.gif";		             
		menu[3] =  siteRoot + "nav_education_on.gif";        
		menu[4] =  siteRoot + "nav_education_off.gif";				
		menu[5] =  siteRoot + "nav_lectures_on.gif";        
		menu[6] =  siteRoot + "nav_lectures_off.gif";		        
		menu[7] =  siteRoot + "nav_performance_on.gif";        
		menu[8] =  siteRoot + "nav_performance_off.gif";		        
		menu[9] =  siteRoot + "nav_generalInfo_on.gif";        
		menu[10] =  siteRoot + "nav_generalInfo_off.gif";				
		menu[11] =  siteRoot + "nav_home.gif";        
		menu[12] =  siteRoot + "nav_logo.gif";	
		
		
        im = new Array()
        for (var i = 1; i < menu.length; i++){
               im[i] = new Image()
               im[i].src = menu[i]

        }
loadcheck = 1;
}

function display(num,imgname){
         if (loadcheck) {
     imgname.src = im[num].src
}
}