Disable and Enable the Scrolling

disableScrolling: function() {
	   var that= this;
	    var body = $('body');
		var oWidth = body.outerWidth(true);
		body.addClass('themodal-lock');
		var sbWidth = body.outerWidth(true) - oWidth;
		if (that.isIE()) {
			that.ieBodyTopMargin = body.css('margin-top');
			body.css('margin-top', 0);
		}

		if (sbWidth != 0) {
			var tags = $('html, body');
			tags.each(function () {
				var $this = $(this);
				that.oMargin[$this.prop('tagName').toLowerCase()] = parseInt($this.css('margin-right'));
			});
			$('html').css('margin-right', that.oMargin['html'] + sbWidth);
			//$('.popup-bck').css('left', 0 - sbWidth);
		}
	},

	enableScrolling: function() {
		var that= this;
		if (that.isIE()) {
			$('body').css('margin-top', that.ieBodyTopMargin);
		}

		var body = $('body');
		var oWidth = body.outerWidth(true);
		body.removeClass('themodal-lock');
		var sbWidth = body.outerWidth(true) - oWidth;

		if (sbWidth != 0) {
			$('html, body').each(function () {
				var $this = $(this);
				$this.css('margin-right', that.oMargin[$this.prop('tagName').toLowerCase()])
			});
		}
	},