// JavaScript Document

var i = 1; //indice sfondo index
var v = 0; //indice volume

var start = 1;

function sfondo(){
	var div_base = eval('document.getElementById(\'div_base'+i+'\')');	
	if(start == 1){
		start = 0;	
	}
	else{
		if(i == 4){
			i = 1;
		}
		else{
			i = i+1;
		}
		div_base.setAttribute("id","div_base"+i);	
	}
	setTimeout("sfondo()", 5000);		
}

function vol_on_off(){
	var div_vol = document.getElementById("v");
	if(v == 0){
		v = 1;
		div_vol.innerHTML = '<img src="/design/ezwebin/images/no_volume.jpg" border="0" />';
	}
	else if(v == 1){
		v = 0;
		div_vol.innerHTML = '<img src="/design/ezwebin/images/volume.jpg" border="0" />';
	}		
}