function showback()
{

	controllaDimensioni();	
	//document.getElementById("debugger").innerHTML="larghezza:"+ widthreale + ' - altezza:' + heightreale;
	
	document.getElementById("wrapper").style.left = "0px";
	document.getElementById("wrapper").style.top = "0px";
	document.getElementById("wrapper").style.width = widthreale+"px";
	document.getElementById("wrapper").style.height = heightreale+"px";
	

	
	//document.getElementById("ac_entra").style.left = ((widthreale/2)-50)+"px";
	
	
	document.getElementById("ac_content").style.top = ((heightreale/2)-260)+"px";
	document.getElementById("ac_content").style.left = (widthreale-988)+"px";
	$("#ac_content").css({visibility:'visible'});
	
	
	$("#ac_bgimage").fullBg();
	
	
}