//SETTING UP OUR POPUP
//0 means disabled; 1 means enabled;
var currentPopup = 0;


//loading popup with jQuery magic!
function loadPopup(popupName){
	//loads popup only if it is disabled		
	var windowHeight = $(document).height();
		$("#backgroundPopup").css({"opacity": "0.5",
		"height": windowHeight
		});
		
		$("#backgroundPopup").fadeIn("fast");		
		$(popupName).fadeIn("fast");		
		currentPopup = popupName;
	
}

//disabling popup with jQuery magic!
function disablePopup(){
	//disables popup only if it is enabled	
		$("#backgroundPopup").fadeOut("fast");		
		$(currentPopup).fadeOut("fast");
		currentPopup = 0;	
}

//centering popup
function centerPopup(popupName){
	//request data for centering 
	var windowWidth = $(window).width();
	var windowHeight = $(window).height(); 
	var popupHeight = $(popupName).height();
	var popupWidth = $(popupName).width();
	//centering
	$(popupName).css({
		"position": "absolute",
		"top": '160px', //windowHeight/2-popupHeight/2,
		"left":windowWidth/2-popupWidth/2
	});
		
}