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

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

      $("#backgroundPopup").toggle();
        //$(popupID).toggle("slow");
        $(popupID).show();

		popupStatus = 1;
	}
}

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

//centering popup
function centerPopup(popupID) {
	//request data for centering
	var windowWidth = document.documentElement.clientWidth;
	var windowHeight = document.documentElement.clientHeight;
	var popupHeight = $(popupID).height();
	var popupWidth = $(popupID).width();

	var top = 0;
	if (popupHeight>windowHeight){
    	top = popupHeight/2 - windowHeight/2;
	}else{
    	top = windowHeight/2-popupHeight/2;
	}
	//centering
	$(popupID).css({
		"position": "absolute",
		"top": top,
		"left": windowWidth/2-popupWidth/2
	});
	//only need force for IE6
	
	$("#backgroundPopup").css({
		"height": windowHeight,
		"width": windowWidth
	});
	
}