Ticket #67: center.2.txt

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File center.2.txt, 1.3 KB (added by kepler@neighborwebma, July 15, 2006 09:19PM UTC)

better clear() function which accepts "horizontal" and "vertical" param

$.fn.center = function(f) {
	return this.each(function(){
		if ( !f && this.nodeName == 'IMG' &&
				 !this.offsetWidth && !this.offsetHeight ) {
			var self = this;
			setTimeout(function(){
				$(self).center(true);
			}, 13);
		} else {
			var s = this.style;
			var p = this.parentNode;
			var b = document.body;
			var t = 0;

			if ( f != "vertical" )
			{
				if ( $.css(p,"position") == 'static' )
					p.style.position = 'relative';
				s.position = 'absolute';
				if ( ! isNaN(parseInt($.css(p,"width"))) )
				{
					t = parseInt(($.css(p,"width") - $.css(this,"width"))/2);
					if ( t > 0 )
						s.left = t + "px";
					else
						s.left = "0px";
				}
				else if ( ! isNaN( b.clientWidth ) )
				{
					t = parseInt((b.clientWidth - $.css(this,"width"))/2);
					if ( t > 0 )
						s.left = t + "px";
					else
						s.left = "0px";
				}
			}

			if ( f != "horizontal" )
			{
				if ( ! isNaN(parseInt($.css(p,"height"))) )
				{
					t = parseInt(($.css(p,"height") - $.css(this,"height"))/2);
					if ( t > 0 )
						s.top = t + "px";
					else
						s.top = "0px";
				}
				else if ( ! isNaN( b.clientHeight ) )
				{
					t = parseInt((b.clientHeight - $.css(this,"height"))/2);
					if ( t > 0 )
						s.top = t + "px";
					else
						s.top = "0px";
				}
			}
		}
  });
};

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