var popupStatus = 0;
var currPop="AddInfo";

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

}

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

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

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

}

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