var notopen=true
var features = ',menubar=no,toolbar=no,location=no,directories=no,status=no,resizable=no,dependent=yes';


function cwOpen(url,options)
{
if(notopen || (!notopen && cwOpened.closed))
{
cwOpened = window.open(url,'cwOpened',options,features)
notopen=false
}
else
{
cwOpened.close();
cwOpened = window.open(url,'cwOpened',options,features)
notopen=false
}
}

function precharge(iObj,iSrc) {
if (document.images) { 
	eval(iObj+' = new Image()')
	eval(iObj+'.src = "'+iSrc+'"')}
}

function roll(nom,iObj) { 
	if(document.images)document.images[nom].src = eval(iObj+'.src')
}