// JavaScript Document
function position_back_history(){
	var y = document.getElementById("image_chocolate").offsetTop;
	document.getElementById("back_history").style.top=145+"px";
	document.getElementById("back_history").style.left=790+"px";
	document.getElementById("back_history").style.display="block";
}

function position_back(){
	var y = document.getElementById("cadre").offsetTop;
	document.getElementById("zoom_box_back").style.top=500+"px";
	document.getElementById("zoom_box_back").style.left=30+"px";
	document.getElementById("zoom_box_back").style.display="block";
}