jQuery().ready(function() {
	jQuery(window).resize(function() {
		var arrPageSizes = ___getPageSize();

		jQuery('#jquery-overlay').css({
			width	:	arrPageSizes[0],
			height	:	arrPageSizes[1]
		});
	});
});

function mask_show(can_click_on_it) {
	if (typeof(can_click_on_it) == 'undefined') {
		can_click_on_it = true;
	}

	jQuery('body').append('<div id="jquery-overlay"></div>');

	var arrPageSizes = ___getPageSize();

	jQuery('#jquery-overlay').css({
		backgroundColor	:	'#000',
		opacity			:	0.65,
		width			:	'100%',
		height			:	arrPageSizes[1]
	}).fadeIn();

	if (can_click_on_it) {
		jQuery('#jquery-overlay').click(function() {
			mask_close();
		});
	}
}

function mask_close() {
	jQuery('#jquery-overlay').fadeOut(function() {
		jQuery('#jquery-overlay').remove();
	});
	jQuery('embed, object, select').css({ visibility: 'visible' });
}

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;
};