function ouvrirApercuAvantImpression(url)
{
	open_new_window(url,'portrait');
}
function ouvrirApercuAvantImpression2(url,orientation)
{
	open_new_window(url,'paysage');
}


function open_new_window(url,orientation)
{ 
	if(orientation=='portrait')
	{
		new_window = window.open(url,'window_name','scrollbars=yes,toolbar=0,menubar=1,resizable=1,dependent=0,status=1,width=790,height=500,left=0,top=0');
	}
	else if (orientation=='paysage')
	{
		/*new_window = window.open(url,'window_name','scrollbars=yes,toolbar=0,menubar=1,resizable=1,dependent=0,status=1,width=900,height=500,left=0,top=0');*/
		new_window = window.open(url,'window_name','scrollbars=yes,toolbar=0,menubar=1,resizable=1,dependent=0,status=1,width=750,height=450,left=0,top=0');
	}
	else
	{
		alert("Pas d'orientation définie !");
	}
	new_window.focus();
}