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

//loading popup with jQuery magic!
function loadPopup(){
	//loads popup only if it is disabled
	if(popupStatus==0){
		$("#backgroundPopup").css({
			"opacity": "0.7"
		});
		$("#backgroundPopup").fadeIn("slow");
		$("#popupExchange").fadeIn("slow");
		popupStatus = 1;
	}
}

//disabling popup with jQuery magic!
function disablePopup(){
	//disables popup only if it is enabled
	if(popupStatus==1){
		$("#backgroundPopup").fadeOut("slow");
		$("#popupExchange").fadeOut("slow");
		popupStatus = 0;
	}
}

//centering popup
function centerPopup(){
	//request data for centering
	var windowWidth = document.documentElement.clientWidth;
	var windowHeight = document.documentElement.clientHeight;
	var popupHeight = $("#popupExchange").height();
	var popupWidth = $("#popupExchange").width();
	//centering
	$("#popupExchange").css({
		"position": "absolute",
		"top": windowHeight/2-popupHeight/2,
		"left": windowWidth/2-popupWidth/2
	});
	//only need force for IE6

	$("#backgroundPopup").css({
		"height": windowHeight
	});

}

function showPDF(pdfFile){
	var load = window.open(pdfFile,'','scrollbars=no,menubar=no,height=600,width=800,resizable=yes,toolbar=no,location=no,status=no');
	disablePopup();
}

//CLOSING POPUP
//Click the x event!
$("#popupExchangeClose").click(function(){
	disablePopup();
});
//Click out event!
$("#backgroundPopup").click(function(){
	disablePopup();
});
//Press Escape event!
$(document).keypress(function(e){
	if(e.keyCode==27 && popupStatus==1){
		disablePopup();
	}
});