function popup(width,height,src) {
	
	document.getElementById('popup_iframe').src="conditions.php";
	document.getElementById('popup_iframe').style.width=width-4;
	document.getElementById('popup_iframe').style.height=height-4;
	document.getElementById('popup_div').style.width=width;
	document.getElementById('popup_div').style.height=height;
	// centrage dans l'écran
	l=200 + (screen.width-width-220)/2;
	
	t=120;
	
	
	document.getElementById('popup_div').style.left=l;
	document.getElementById('popup_div').style.top=t;
	document.getElementById('popup_div').style.visibility = "visible";
	
}

function ferme_popup() {
	document.getElementById("popup_div").style.top=-10000;
	document.getElementById("popup_div").style.left=-10000;
}