function toggleBox(cont)
{
    if(document.layers)	   //NN4+
    {
	   currStato = document.layers[cont].display;
	   Stato = (currStato == "block" ? "none" : "block");        
       document.layers[cont].display = Stato;
    }
    else if(document.getElementById)	  //gecko(NN6) + IE 5+
    {
        for(k=0;k<1;k++) {
	        var currDiv = "cont" + k;
	    	var obj = document.getElementById(currDiv);    
	    	obj.style.display = "none";
        }
	    var obj = document.getElementById(cont);
	    currStato = obj.style.display;
	    Stato = (currStato == "block" ? "none" : "block");        
        obj.style.display = Stato;
    }
    else if(document.all)	// IE 4
    {
		currStato = document.all[cont].style.display;
		Stato = (currStato == "block" ? "none" : "block");        
        document.all[cont].style.display = Stato;
    }
}



function hideBox()
{
for(k=0;k<1;k++) {
	        var div1 = "cont0";
	        var div2 = "cont1";
	    	var obj = document.getElementById(div1);    
	    	var obj2 = document.getElementById(div2);  
	    	obj.style.display = "none";
	    	obj2.style.display = "block";
	    	
        }
    }