$(document).ready(function() {
	Affichage();
	
	$(window).resize(function() {
		  Affichage();
		});
});

function Affichage()
{
	var WindowWidth = $(window).width();	
	/*$(".DivContenu").css("width",WindowWidth );*/
	
	var WebPhotoWidth = $(".DivSiteWebPhoto").width() + 2;
	
	var NbBox = parseInt(WindowWidth / WebPhotoWidth);
	
	var Margin = CalculMargin(WindowWidth,WebPhotoWidth,NbBox);
	if(Margin == 0){
		Margin = CalculMargin(WindowWidth,WebPhotoWidth,NbBox - 1);
	}
	
	$(".DivSiteWebPhoto").css("margin-right",Margin);
	$(".DivSiteWebPhoto").css("margin-left",Margin);
}

function CalculMargin(WindowWidth,WebPhotoWidth,NbBox){	
	return  parseInt(((WindowWidth - (WebPhotoWidth * NbBox)) / NbBox)/2);
}