function imgagepreload(){
if (document.images){
	var filediimmagini = imgagepreload.arguments;
	var matriceprecaricate = new Array();
		for (var i=0; i<filediimmagini.length; i++){
			matriceprecaricate[i] = new Image;
			matriceprecaricate[i].src = filediimmagini[i];}
		}
}

imgagepreload('../globalpage/index/home.jpg','../globalpage/index/section/north_south_america_off.png', '../globalpage/index/section/north_south_america_on.png', '../globalpage/index/section/africa_off.png', '../globalpage/index/section/africa_on.png', '../globalpage/index/section/europa_off.png', '../globalpage/index/section/europa_on.png', '../globalpage/index/section/asia_off.png', '../globalpage/index/section/asia_on.png','../globalpage/index/section/bg_africa.png','../globalpage/index/section/bg_asia.png','../globalpage/index/section/bg_america.png','../globalpage/index/section/bg_europa.png'); //Pre carica le immagini

function cambia(img)
		{
		
		if(img =="NorthAmericaImg"){
		
		 document.getElementById('NorthAmericaImg').src='index/section/north_south_america_on.png';
		 document.getElementById('EuropaImg').src='index/section/europa_off.png';
		 document.getElementById('AsiaOceaniaImg').src='index/section/asia_off.png';
		 document.getElementById('AfricaImg').src='index/section/africa_off.png'
		 /////////////////
		 document.getElementById('NA').style.display='block';
		 document.getElementById('EU').style.display='none';
		 document.getElementById('AF').style.display='none';
		 document.getElementById('AS').style.display='none';
		 
		}
		else if(img =="EuropaImg"){
		
		 document.getElementById('NorthAmericaImg').src='index/section/north_south_america_off.png';
		 document.getElementById('EuropaImg').src='index/section/europa_on.png';
		 document.getElementById('AsiaOceaniaImg').src='index/section/asia_off.png';
		 document.getElementById('AfricaImg').src='index/section/africa_off.png'
		 ////////////////
		 document.getElementById('NA').style.display='none';
		 document.getElementById('EU').style.display='block';
		 document.getElementById('AF').style.display='none';
		 document.getElementById('AS').style.display='none';
		
		}else if(img =="AsiaImg"){
		
		 document.getElementById('NorthAmericaImg').src='index/section/north_south_america_off.png';
		 document.getElementById('EuropaImg').src='index/section/europa_off.png';
		 document.getElementById('AsiaOceaniaImg').src='index/section/asia_on.png';
		 document.getElementById('AfricaImg').src='index/section/africa_off.png'
		 ////////////////
		 document.getElementById('NA').style.display='none';
		 document.getElementById('EU').style.display='none';
		 document.getElementById('AF').style.display='none';
		 document.getElementById('AS').style.display='block';
		
		}else if(img =="AfricaImg"){
		
		 document.getElementById('NorthAmericaImg').src='index/section/north_south_america_off.png';
		 document.getElementById('EuropaImg').src='index/section/europa_off.png';
		 document.getElementById('AsiaOceaniaImg').src='index/section/asia_off.png';
		 document.getElementById('AfricaImg').src='index/section/africa_on.png'
		 ////////////////
		 document.getElementById('NA').style.display='none';
		 document.getElementById('EU').style.display='none';
		 document.getElementById('AF').style.display='block';
		 document.getElementById('AS').style.display='none';
		
		
		}
		
		}

function noView(){
	
		 document.getElementById('NorthAmericaImg').src='index/section/north_south_america_off.png';
		 document.getElementById('EuropaImg').src='index/section/europa_off.png';
		 document.getElementById('AsiaOceaniaImg').src='index/section/asia_off.png';
		 document.getElementById('AfricaImg').src='index/section/africa_off.png'
		 ////////////////
		 document.getElementById('NA').style.display='none';
		 document.getElementById('EU').style.display='none';
		 document.getElementById('AF').style.display='none';
		 document.getElementById('AS').style.display='none';
	
	
	}