function loadPopup(){  
	//loads popup only if it is disabled  
	if($("#bgPopup").data("state")==0){  
		$("#bgPopup").css({  
			"opacity": "0.7"  
		});  
		$("#bgPopup").fadeIn("medium");  
		$("#Popup").fadeIn("medium");  
		$("#bgPopup").data("state",1);  
	}  
}  

function disablePopup(){  
	if ($("#bgPopup").data("state")==1){  
		$("#bgPopup").fadeOut("medium");  
		$("#Popup").fadeOut("medium");  
		$("#bgPopup").data("state",0);  
	}  
}  

function centerPopup(){  
	var winw = $(window).width();  
	var winh = $(window).height();  
	var popw = $('#Popup').width();  
	var poph = $('#Popup').height();  
	$("#Popup").css({  
		"position" : "absolute",  
		"top" : winh/2-poph/2,  
		"left" : winw/2-popw/2  
	});  
	//IE6  
	$("#bgPopup").css({  
		"height": winh  
	});  
}  


$(document).ready(function() {  
	$("#bgPopup").data("state",0);  
	$("#myButton").click(function(){  
		centerPopup();  
		loadPopup();  
	});  
	$("#popupClose").click(function(){  
		disablePopup();  
		
	});  
	$(document).keypress(function(e){  
		if(e.keyCode==27) {  
			disablePopup();  
		}  
	});  
});