/*------------------------------------------------------*
  *-------FONCTIONS JAVASCRIPT    ----*
  *------------------------------------------------------*/


/*1 popup */

function popup(page,largeur,hauteur,options)
{
	var top=(screen.height-hauteur)/2;
	var left=(screen.width-largeur)/2;
	window.open(page,"","top="+top+",left="+left+",width="+largeur+",height="+hauteur+","+options);
}

/*2 effet alpha image */

function makevisible(cur,which){
strength=(which==0)? 1 : 0.8

if (cur.style.MozOpacity)
cur.style.MozOpacity=strength
else if (cur.filters)
cur.filters.alpha.opacity=strength*100
}