var popuploginStatus = 0;

function loadpopuplogin(){
	if(popuploginStatus==0){
		$("#backgroundpopuplogin").css({
			"opacity": "0.7"
		});
		$("#backgroundpopuplogin").fadeIn("slow");
		$("#popuploginCart").fadeIn("slow");
		popuploginStatus = 1;
	}
}

function disablepopuplogin(){
	if(popuploginStatus==1){
		$("#backgroundpopuplogin").fadeOut("slow");
		$("#popuploginCart").fadeOut("slow");
		popuploginStatus = 0;
	}
}

function centerpopuplogin(){
	var windowWidth = document.documentElement.clientWidth;
	var windowHeight = document.documentElement.clientHeight;
	var popuploginHeight = $("#popuploginCart").height();
	var popuploginWidth = $("#popuploginCart").width();
	$("#popuploginCart").css({
		"position": "absolute",
		"top": windowHeight/2-popuploginHeight/2,
		"left": windowWidth/2-popuploginWidth/2
	});
	
	$("#backgroundpopuplogin").css({
		"height": windowHeight
	});
	
}

$(document).ready(function(){
	
	$("#buttonlogin").click(function(){
		centerpopuplogin();
		loadpopuplogin();
	});
				
	$("#popuploginCartClose").click(function(){
		disablepopuplogin();
	});
	$("#backgroundpopuplogin").click(function(){
		disablepopuplogin();
	});
	$(document).keypress(function(e){
		if(e.keyCode==27 && popuploginStatus==1){
			disablepopuplogin();
		}
	});

});