function popup_color_picker(libelle, span_upt)
{
	var width = 400;
	var height = 300;
	window.open('../../lib/colpick/color_picker.php?libelle='+libelle+'&span_upt='+span_upt+'', 'cp', 'resizable=no, location=no, width='
				+width+', height='+height+', menubar=no, status=yes, scrollbars=no, menubar=no');
}