/***************************/
//@Author: Adrian "yEnS" Mato Gondelle
//@website: www.yensdesign.com
//@email: yensamg@gmail.com
//@license: Feel free to use it, but keep this credits please!					
/***************************/

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

//loading popup with jQuery magic!
function loadPopup(){
	//loads popup only if it is disabled
	if(popupStatus==0){
		$("#maskbg").css({
			"opacity": "0.7"
		});
		$("#maskbg").fadeIn(myFadeSpeed);
		$("#alerttip").fadeIn(myFadeSpeed);
		popupStatus = 1;
	}
}

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

//centering popup
function centerPopup(){
	//request data for centering
//	var windowWidth = '100%';
//	var windowHeight = '100%';
	var windowWidth = document.documentElement.clientWidth;
	var windowHeight = document.documentElement.clientHeight;

    //alert(document.body.offsetHeight);

	var popupHeight = $("#alerttip").height();
	var popupWidth = $("#alerttip").width();
	
	var cssTop = document.documentElement.scrollTop + (popupHeight/2 > 200 ? 100 : popupHeight/2);

	var cssLeft = windowWidth/2-popupWidth/2;
//	alert(cssTop);
	//centering
	$("#alerttip").css({
		"position": "absolute",
//		"top": document.documentElement.scrollTop + windowHeight/2-popupHeight/2,
    "top": cssTop,
		"left": cssLeft
	});
	//only need force for IE6
	
	$("#maskbg").css({
	  "height":document.body.clientHeight
	});
	
}