var screenX;
var screenY;

function f_grandeur()
{
if (navigator.appName == "Microsoft Internet Explorer")
        {
                screenY = document.body.offsetHeight;
                screenX = window.screen.availWidth;
        }
        else
        {
                screenY = window.outerHeight;
                screenX = window.outerWidth;
        }



}

function f_affiche_frame_centrale(l_image)
{
	f_grandeur();
	screenX-=350;
        screenY-=200;
	document.writeln("<img src=\""+l_image+"\" width=\""+screenX+"\" height=\""+screenY+"\">");
}

function f_index(l_image,l_police)
{
	f_grandeur();
	milieuY=screenY/2-50;
	screenY-=75;
	milieuX=(screenX+100)/2;
	// milieuX=(screenX+100)/2;
	document.writeln("<img src=\""+l_image+"\" width=\""+screenX+"\" height=\""+screenY+"\">");
	//document.writeln("<style>");
	//document.writeln(".accueil_image4");
	//document.writeln("{");
        //document.writeln("position : absolute;");
        //document.writeln("top :"+milieuY+"px;");
        //document.writeln("left :"+milieuX+"px;");
	//document.writeln("}");
	//document.writeln("</style>");
	if (l_police)
		document.writeln("<div class='accueil_image4'><a href='./frameset.html' class='index'>Entrer&nbsp;</a></div>");
	else
		document.writeln("<div class='accueil_image4'><a href='./chargement_police.html' class='index'>Entrer&nbsp;</a></div>");
}