jquery-scrolltofixed-min.js

(function(a){a.ScrollToFixed=function(c,f){var i=this;i.$el=a(c);i.el=c;i.$el.data("ScrollToFixed",i);var b=false;var u=i.$el;var t=0;var l=0;var g=-1;var d=-1;var n=null;function o(){h();d=-1;t=u.offset().top;l=u.offset().left;if(g==-1){orginalOffsetLeft=l}b=true;if(i.options.bottom!=-1){q()}}function k(){return u.css("position")=="fixed"}function r(){return u.css("position")=="absolute"}function e(){return !(k()||r())}function q(){if(!k()){n.css({display:u.css("display"),width:u.outerWidth(true),height:u.outerHeight(true),"float":u.css("float")});u.css({width:u.width(),position:"fixed",top:i.options.bottom==-1?m():"",bottom:i.options.bottom==-1?"":i.options.bottom})}}function h(){if(!e()){d=-1;n.css("display","none");u.css({width:"",position:"",left:"",top:""})}}function p(v){if(v!=d){u.css("left",l-v);d=v}}function m(){return i.options.marginTop}function s(){if(!b){o()}var v=a(window).scrollLeft();var w=a(window).scrollTop();if(i.options.bottom==-1){if(i.options.limit>0&&w>=i.options.limit-m()){if(!r()){j();u.trigger("preAbsolute");u.css({width:u.width(),position:"absolute",top:i.options.limit,left:l});u.trigger("unfixed")}}else{if(w>=t-m()){if(!k()){j();u.trigger("preFixed");q();d=-1;u.trigger("fixed")}p(v)}else{if(k()){j();u.trigger("preUnfixed");h();u.trigger("unfixed")}}}}else{if(i.options.limit>0){if(w+a(window).height()-u.outerHeight(true)>=i.options.limit-m()){if(k()){j();u.trigger("preUnfixed");h();u.trigger("unfixed")}}else{if(!k()){j();u.trigger("preFixed");q()}p(v);u.trigger("fixed")}}else{p(v)}}}function j(){var v=u.css("position");if(v=="absolute"){u.trigger("postAbsolute")}else{if(v=="fixed"){u.trigger("postFixed")}else{u.trigger("postUnfixed")}}}i.init=function(){i.options=a.extend({},a.ScrollToFixed.defaultOptions,f);if(navigator.platform=="iPad"||navigator.platform=="iPhone"||navigator.platform=="iPod"){return}i.$el.css("z-index",i.options.zIndex);n=a("<div/>");i.$el.after(n);a(window).bind("resize",function(v){o();s()});a(window).bind("scroll",function(v){s()});if(i.options.preFixed){u.bind("preFixed",i.options.preFixed)}if(i.options.postFixed){u.bind("postFixed",i.options.postFixed)}if(i.options.preUnfixed){u.bind("preUnfixed",i.options.preUnfixed)}if(i.options.postUnfixed){u.bind("postUnfixed",i.options.postUnfixed)}if(i.options.preAbsolute){u.bind("preAbsolute",i.options.preAbsolute)}if(i.options.postAbsolute){u.bind("postAbsolute",i.options.postAbsolute)}if(i.options.fixed){u.bind("fixed",i.options.fixed)}if(i.options.unfixed){u.bind("unfixed",i.options.unfixed)}if(i.options.bottom!=-1){if(!k()){j();u.trigger("preFixed");q()}}};i.init()};a.ScrollToFixed.defaultOptions={marginTop:0,limit:0,bottom:-1,zIndex:1000};a.fn.scrollToFixed=function(b){return this.each(function(){(new a.ScrollToFixed(this,b))})}})(jQuery);