jquery.center.min.js

/*! Copyright 2011, Ben Lin (http://dreamerslab.com/)
* Licensed under the MIT License (LICENSE.txt).
*
* Version: 1.1.1
*
* Requires: jQuery 1.2.6+
*/
;(function($,window){var get_win_size=function(){if(window.innerWidth!=undefined)return[window.innerWidth,window.innerHeight];else{var B=document.body;var D=document.documentElement;return[Math.max(D.clientWidth,B.clientWidth),Math.max(D.clientHeight,B.clientHeight)]}};$.fn.center=function(opt){var $w=$(window);var scrollTop=$w.scrollTop();return this.each(function(){var $this=$(this);var configs=$.extend({against:"window",top:false,topPercentage:0.5,resize:true},opt);var centerize=function(){var against=configs.against;var against_w_n_h;var $against;if(against==="window")against_w_n_h=get_win_size();else if(against==="parent"){$against=$this.parent();against_w_n_h=[$against.width(),$against.height()];scrollTop=0}else{$against=$this.parents(against);against_w_n_h=[$against.width(),$against.height()];scrollTop=0}var x=(against_w_n_h[0]-$this.outerWidth())*0.5;var y=(against_w_n_h[1]-$this.outerHeight())*configs.topPercentage+scrollTop;if(configs.top)y=configs.top+scrollTop;$this.css({"left":x,"top":y})};centerize();if(configs.resize===true)$w.resize(centerize)})}})(jQuery,window);