//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");
        $("#popupLifeNEWS").fadeIn("slow");
        popupStatus = 1;
    }
}

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

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

    //only need force for IE6
    $("#backgroundPopup").css({
        "height": windowHeight
    });
}

$(document).ready(function(){
    //LOADING POPUP
    //Click the button event!
    $("#LifeNEWSbutton").click(function(){
        //centering with css
        centerPopup();
        //load popup
        loadPopup();
    });
});

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