//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
        //alert("fadein");
    if (popupStatus == 0) {
        $("#backgroundPopup").css({
            "opacity": "0.7"
        });
        $("#backgroundPopup").fadeIn("slow");
        $("#popupWindow").fadeIn("slow");
        popupStatus = 1;
    }
}

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

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

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

}

//$(document).ready(function() {
function showPopup(){
    //alert("//Click the x event!");
    $("#popupWindowClose").click(function() {
        disablePopup();
    });
    //Click out event!
    $("#backgroundPopup").click(function() {
        disablePopup();
    });
    //Press Escape event!
    $(document).keypress(function(e) {
        if (e.keyCode == 27 && popupStatus == 1) {
            disablePopup();
        }
    });
    //centering with css
    centerPopup();
    //load popup
    loadPopup();
};