function OuvrirIndexFenetre()
{
var largeur = screen.width ; 
if (largeur >= 1024)
	{
	window.open('','idx','width=900,height=600,scrollbars=1,resizable=1,menubar=0,toolbar=0');
	}
if (largeur < 1024)
	{
	window.open('','idx','width=900,height=500,scrollbars=1,resizable=1,menubar=0,toolbar=0');
	}
}