//0 means disabled; 1 means enabled;
var popupStatus = 0;

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

//disabling popup with jQuery magic!
function disablePopup(num){
	//disables popup only if it is enabled
	var hideid	= "#popupimage_"+num;

	if(popupStatus==1){
		$("#backgroundPopup").fadeOut("slow");
		$(hideid).fadeOut("slow");
		popupStatus = 0;
	}
}

//centering popup
function centerPopup(num){
	//request data for centering
	var windowWidth = document.documentElement.clientWidth;
	var windowHeight = document.documentElement.clientHeight;
        var divname="#popupimage_"+num;
	
	var popupHeight = $(divname).height();
	var popupWidth = $(divname).width();
	
        
	//centering
	$(divname).css({
		"position": "absolute",
		"top": windowHeight/4-popupHeight/4,
		"left": windowWidth/2-popupWidth/2
	});
	//only need force for IE6
	
	$("#backgroundPopup").css({
		"height": windowHeight
	});
	
}


//CONTROLLING EVENTS IN jQuery

$(document).ready(function(){
	
	//LOADING POPUP
	//Click the button event!
	$("#button_1").click(function(){
		//centering with css
		centerPopup(1);
		//load popup
		loadPopup(1);
	});

	$("#button_2").click(function(){
		//centering with css
		centerPopup(2);
		//load popup
		loadPopup(2);
	});

	$("#button_3").click(function(){
		//centering with css
		centerPopup(3);
		//load popup
		loadPopup(3);
	});

	$("#button_4").click(function(){
		//centering with css
		centerPopup(4);
		//load popup
		loadPopup(4);
	});
	
	$("#button_5").click(function(){
		//centering with css
		centerPopup(5);
		//load popup
		loadPopup(5);
	});

});