//abrir/fechar
$(document).ready(function() {
	$(".bgOverlayZoom, #btLayerClose").click(function() {
		showHideBannerFloater("hide");
	});
});

function showHideBannerFloater(status){	

var conteudo="";
	
	if(status=="show"){																
		//mostra zoom
		$(".bgOverlayZoom").show();

		document.getElementById("infoLayerVideo").innerHTML = conteudo;
		
		$(".bgOverlayZoom").fadeTo(0, 0);
		$(".bgOverlayZoom").fadeTo("fast", 0.7);
		$("#bannerFloater").fadeIn("fast");
		//posiciona
		adaptaDimensoesBg();
		$(window).bind("scroll", adaptaDimensoesBg);
		$(window).bind("resize", adaptaDimensoesBg);

	}else{			
		$.ajax({
		  url: 'parar_layer_home.php',
		  success: function(data) {
			$(".bgOverlayZoom").hide();
			$("#infoLayerVideo").html("");
			$("#bannerFloater").hide();
			$(window).unbind("scroll", adaptaDimensoesBg);
			$(window).unbind("resize", adaptaDimensoesBg);
		  }
		});


	}
}
											
function adaptaDimensoesBg() {
	/*
	* adapta background e centraliza conteúdo do layer
	*/
	var scrTop = $(document).scrollTop();
	
	//layer conteudo
	var top = ($(window).height() - $("#bannerFloater").height()) * .5;
	var left = ($(window).width() - $("#bannerFloater").width()) * .5;
	top += scrTop;
	$("#bannerFloater").css("top", top+"px");
	$("#bannerFloater").css("left", left+"px");
	//layer bg
	var $body = $(this.ie6 ? document.body : document);
	$('.bgOverlayZoom').css({
		width:		$body.width(),
		height:		$body.height()
	});
	delete $body;
}