function showHelp(id)
		{
			/* define div with black baclground to hide all page */
//			var w = ($.browser.msie && $.browser.version == 6.0) ? ($(document).width()-20) : $(document).width();
//			alert($.browser.version);
//			alert(w);
			var background = $('<div/>');
			$(background).attr('id', 'overlayBackground').css(
			{
				'width' : $(document).width(),
				'height' : $(document).height()
			});
			/* append div with dark background to body element*/
			$('body').append(background);
			/* define parent of help text */
			var helpBlock = $('<div/>');
			var close = $('<div/>');
			$(close).attr('id', 'closeButton');
			$(close).text('X');
//			$(helpBlock).corner();
			/* insert html from div with given id */
			$(helpBlock).html($('#'+id).html());
			$(helpBlock).append($(close));
			/* append help block to body element */
			$('body').append($(helpBlock));
			/* define help block position and style */
			h = window.pageYOffset || document.body.scrollTop || document.documentElement.scrollTop;
			$(helpBlock).attr('id', 'helpBlock').css({
				/*'top':($(document).height()/2)-(document.getElementById('helpBlock').offsetHeight/2),*/
/*				'top':document.documentElement.scrollTop + 20,*/
				'top':h+300,
/*				'top':$('body').scrollTop()+20,*/
				'left':($(document).width()/2)-(document.getElementById('helpBlock').offsetWidth/2)
			});
//			$('#helpBlock').corner();
//			$(helpBlock).corner();
			$(close).bind('click', function()
			{
				$(helpBlock).remove();
				$(background).remove();
			});

			/* by clicking a side of help block hide it and background */
			$(background).bind('click', function()
			{
				$(helpBlock).remove();
				$(this).remove();
			});
			return false;
		}