/*
 * Author : Cvetozar Ninov
 * Email  : cninov@gmail.com
 * */
var jQueryMatchedObj = {};
(function($) {
	$.fn.mask = function(settings) {
		settings = jQuery.extend({
			overlayBgColor: 		'#000',
			overlayOpacity:			0.8,
			containerBorderSize:	1
		},settings);
		//$('#jquery-mask .input_btn input').css({border:'1px solid red'});
		jQueryMatchedObj = this;
		_start();
		
		
		function _start() 
		{
			$('embed, object').css({ 'visibility' : 'hidden' });
			_set_interface();
			return false;
		}
		function _set_interface()
		{
			
			$('body').append('<div id="jquery-overlay"></div><div id="jquery-mask"></div>');
			$('#jquery-mask').append(jQueryMatchedObj);	
			var arrPageSizes = ___getPageSize();
			var arrPageScroll = ___getPageScroll();
			$('#jquery-overlay').css({
				backgroundColor:	settings.overlayBgColor,
				opacity:			settings.overlayOpacity,
				width:				arrPageSizes[0],
				height:				arrPageSizes[1]+$('body').height(),
				position: 			'absolute',
				top: 				0,
				left: 				0,
				zIndex: 			90
			}).fadeIn();
			
			$('#jquery-mask').css({
				top:		arrPageScroll[1] + ((arrPageSizes[3]-jQueryMatchedObj.height()) / 2),
				left:		arrPageScroll[0],
				position: 	'absolute',
				width: 		'100%',
				zIndex: 	100
			}).show();
			
			jQueryMatchedObj.css({
				position: 	'fixed'
			}).show()
			
			$('#jquery-overlay').click(function(e) {
				_finish();									
			});
			
			$(window).resize(function() {
				var arrPageSizes = ___getPageSize();
				var arrPageScroll = ___getPageScroll();
				
				$('#jquery-overlay').css({
					width:		arrPageSizes[0],
					height:		arrPageSizes[1]
				});
				$('#jquery-mask').css({
					top:	arrPageScroll[1] + (arrPageSizes[3] / 10),
					left:	arrPageScroll[0]
				});
			});
		}
		
		function ___getPageSize() 
		{
			var xScroll, yScroll;
			if (window.innerHeight && window.scrollMaxY) {	
				xScroll = window.innerWidth + window.scrollMaxX;
				yScroll = window.innerHeight + window.scrollMaxY;
			} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
				xScroll = document.body.scrollWidth;
				yScroll = document.body.scrollHeight;
			} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
				xScroll = document.body.offsetWidth;
				yScroll = document.body.offsetHeight;
			}
			var windowWidth, windowHeight;
			if (self.innerHeight) {	// all except Explorer
				if(document.documentElement.clientWidth){
					windowWidth = document.documentElement.clientWidth; 
				} else {
					windowWidth = self.innerWidth;
				}
				windowHeight = self.innerHeight;
			} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
				windowWidth = document.documentElement.clientWidth;
				windowHeight = document.documentElement.clientHeight;
			} else if (document.body) { // other Explorers
				windowWidth = document.body.clientWidth;
				windowHeight = document.body.clientHeight;
			}	
			// for small pages with total height less then height of the viewport
			if(yScroll < windowHeight){
				pageHeight = windowHeight;
			} else { 
				pageHeight = yScroll;
			}
			// for small pages with total width less then width of the viewport
			if(xScroll < windowWidth){	
				pageWidth = xScroll;		
			} else {
				pageWidth = windowWidth;
			}
			arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight);
			return arrayPageSize;
		};
	
		function ___getPageScroll() 
		{
			var xScroll, yScroll;
			if (self.pageYOffset) {
				yScroll = self.pageYOffset;
				xScroll = self.pageXOffset;
			} else if (document.documentElement && document.documentElement.scrollTop) {	 // Explorer 6 Strict
				yScroll = document.documentElement.scrollTop;
				xScroll = document.documentElement.scrollLeft;
			} else if (document.body) {// all other Explorers
				yScroll = document.body.scrollTop;
				xScroll = document.body.scrollLeft;	
			}
			arrayPageScroll = new Array(xScroll,yScroll);
			return arrayPageScroll;
		}
		
		function _finish() 
		{
			hide_mask()
		}	
	}
})(jQuery);

function hide_mask(){
	$('#jquery-mask').remove();
	$('#jquery-overlay').fadeOut(function() { $('#jquery-overlay').remove(); });
	$('embed, object').css({ 'visibility' : 'visible' });
}