var Open = ""
var Closed = ""
 
function preload()
{
	if(document.images)
	{
		Open = new Image()    
		Closed = new Image()
		Open.src = "/image/fleche-produit-haut.gif"
		Closed.src = "/image/fleche-produit-bas.gif"
	}
}


function masque(par,par2)
{
	//alert(document.getElementById(par).style.display);
	//alert(document.getElementById(par2).style.display);
	
	if (document.getElementById(par).style.display=='none'){
		document.getElementById(par).style.display='';
		document.getElementById(par2).src=Open.src
	}
	else{
		document.getElementById(par).style.display='none'
		document.getElementById(par2).src=Closed.src
	}
}