// Hier startet unser Popup
// 0 ist aus; 1 ist aktiv;

var popupStatus = 0;

//Lade popup mit jQuery
function loadPopup(){
					if(popupStatus==0){
										jQuery("#backgroundPopup").css({
											"opacity": "0.7"
											});
											jQuery("#backgroundPopup").fadeIn("slow");
											jQuery("#loginForm").fadeIn("slow");
											popupStatus = 1;
										}
					}
					
//Popup deaktivieren
function disablePopup(){
						//deaktiviert das Popup wenn es aktiv ist
						if(popupStatus==1){
											jQuery("#backgroundPopup").fadeOut("slow");
											jQuery("#loginForm").fadeOut("slow");
											popupStatus = 0;
											}
						}
						
//zentriere Popup
function centerPopup(){
	//Daten anfordern für Zentrierung
	var windowWidth = document.documentElement.clientWidth;
	var windowHeight = document.documentElement.clientHeight;
	var popupHeight = jQuery("#loginForm").height();
	var popupWidth = jQuery("#loginForm").width();
//centering
	jQuery("#loginForm").css({
						"position": "absolute",
						"top": windowHeight/2-popupHeight/2,
						"left": windowWidth/2-popupWidth/2
						});
//only need force for IE6

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

}

//CONTROLLING EVENTS IN jQuery
jQuery(document).ready(function(){
	
	//LOADING POPUP
	//Click the button event!
	jQuery("#impress").click(function(){
		//centering with css
		centerPopup();
		//load popup
		loadPopup();
	});
				
	//CLOSING POPUP
	//Click the x event!
	jQuery("#close").click(function(){
		disablePopup();
	});
	//Click out event!
	jQuery("#backgroundPopup").click(function(){
		disablePopup();
	});
	//Press Escape event!
	jQuery(document).keypress(function(e){
		if(e.keyCode==27 && popupStatus==1){
			disablePopup();
		}
	});

});