// Popup
function popup(urll,new_width,new_height) {
if (document.all){
var xMax = screen.width, yMax = screen.height;}
else
if (document.layers)
var xMax = window.outerWidth, yMax = window.outerHeight;
else 
var xMax = 800, yMax=600;
var xOffset = (xMax - new_width)/2, yOffset = (yMax - new_height)/2;
fen = open(urll,'fen','scrollbars=1,toolbar=0,menubar=0,resizable=0,width='+new_width+',height='+new_height+',screenX='+xOffset+',screenY='+yOffset+',top='+yOffset+',left='+xOffset+'');
fen.focus();
}

// Popup Image avec Auto-Dimensions et retour de focus sur page mère
function img_view(path) {
    var pop = window.open( path, 'img_view', 'width=10,height=10,scrollbars=0,toolbar=0,menubar=0,resizable=0');
	pop.focus();
  }