/*
 * jScrollPane - v2.0.0beta6 - 2010-10-28
 * http://jscrollpane.kelvinluck.com/
 *
 * Copyright (c) 2010 Kelvin Luck
 * Dual licensed under the MIT and GPL licenses.
 */
(function(a){a.jScrollPane={active:[]};a.fn.jScrollPane=function(c){c=a.extend({},a.fn.jScrollPane.defaults,c);var b=function(){return false};return this.each(function(){var t=a(this);var E=this;var an=0;var L;var ao;var r;var ad=c.topCapHeight;var j;if(a(this).parent().is(".jScrollPaneContainer")){j=a(this).parent();an=c.maintainPosition?t.position().top:0;var q=a(this).parent();L=q.innerWidth();ao=q.outerHeight();a(">.jScrollPaneTrack, >.jScrollArrowUp, >.jScrollArrowDown, >.jScrollCap",q).remove();t.css({top:0})}else{t.data("originalStyleTag",t.attr("style"));t.css("overflow","hidden");this.originalPadding=t.css("paddingTop")+" "+t.css("paddingRight")+" "+t.css("paddingBottom")+" "+t.css("paddingLeft");this.originalSidePaddingTotal=(parseInt(t.css("paddingLeft"))||0)+(parseInt(t.css("paddingRight"))||0);L=t.innerWidth();ao=t.innerHeight();j=a("<div></div>").attr({className:"jScrollPaneContainer"}).css({height:ao+"px",width:L+"px"});if(c.enableKeyboardNavigation){j.attr("tabindex",c.tabIndex)}t.wrap(j);j=t.parent();a(document).bind("emchange",function(ap,aq,p){t.jScrollPane(c)})}r=ao;if(c.reinitialiseOnImageLoad){var s=a.data(E,"jScrollPaneImagesToLoad")||a("img",t);var i=[];if(s.length){s.each(function(p,ap){a(this).bind("load readystatechange",function(){if(a.inArray(p,i)==-1){i.push(ap);s=a.grep(s,function(at,ar){return at!=ap});a.data(E,"jScrollPaneImagesToLoad",s);var aq=a.extend(c,{reinitialiseOnImageLoad:false});t.jScrollPane(aq)}}).each(function(aq,ar){if(this.complete||this.complete===undefined){this.src=this.src}})})}}var Y=this.originalSidePaddingTotal;var aj=L-c.scrollbarWidth-c.scrollbarMargin-Y;var U={height:"auto",width:aj+"px"};if(c.scrollbarOnLeft){U.paddingLeft=c.scrollbarMargin+c.scrollbarWidth+"px"}else{U.paddingRight=c.scrollbarMargin+"px"}t.css(U);var W=t.outerHeight();var R=ao/W;var V=R<0.99;j[V?"addClass":"removeClass"]("jScrollPaneScrollable");if(V){j.append(a("<div></div>").addClass("jScrollCap jScrollCapTop").css({height:c.topCapHeight}),a("<div></div>").attr({className:"jScrollPaneTrack"}).css({width:c.scrollbarWidth+"px"}).append(a("<div></div>").attr({className:"jScrollPaneDrag"}).css({width:c.scrollbarWidth+"px"}).append(a("<div></div>").attr({className:"jScrollPaneDragTop"}).css({width:c.scrollbarWidth+"px"}),a("<div></div>").attr({className:"jScrollPaneDragBottom"}).css({width:c.scrollbarWidth+"px"}))),a("<div></div>").addClass("jScrollCap jScrollCapBottom").css({height:c.bottomCapHeight}));var ak=a(">.jScrollPaneTrack",j);var u=a(">.jScrollPaneTrack .jScrollPaneDrag",j);var am;var g=[];var aa;var S=function(){if(aa>4||aa%4==0){ai(af+am*I)}aa++};if(c.enableKeyboardNavigation){j.bind("keydown.jscrollpane",function(p){switch(p.keyCode){case 38:am=-1;aa=0;S();g[g.length]=setInterval(S,100);return false;case 40:am=1;aa=0;S();g[g.length]=setInterval(S,100);return false;case 33:case 34:return false;default:}}).bind("keyup.jscrollpane",function(ap){if(ap.keyCode==38||ap.keyCode==40){for(var p=0;p<g.length;p++){clearInterval(g[p])}return false}})}if(c.showArrows){var P;var y;var o=function(p){a("html").unbind("mouseup",o);P.removeClass("jScrollActiveArrowButton");clearInterval(y)};var H=function(){a("html").bind("mouseup",o);P.addClass("jScrollActiveArrowButton");aa=0;S();y=setInterval(S,100)};j.append(a("<a></a>").attr({href:"javascript:;",className:"jScrollArrowUp",tabindex:-1}).css({width:c.scrollbarWidth+"px",top:c.topCapHeight+"px"}).html("Scroll up").bind("mousedown",function(){P=a(this);am=-1;H();this.blur();return false}).bind("click",b),a("<a></a>").attr({href:"javascript:;",className:"jScrollArrowDown",tabindex:-1}).css({width:c.scrollbarWidth+"px",bottom:c.bottomCapHeight+"px"}).html("Scroll down").bind("mousedown",function(){P=a(this);am=1;H();this.blur();return false}).bind("click",b));var v=a(">.jScrollArrowUp",j);var m=a(">.jScrollArrowDown",j)}if(c.arrowSize){r=ao-c.arrowSize-c.arrowSize;ad+=c.arrowSize}else{if(v){var ab=v.height();c.arrowSize=ab;r=ao-ab-m.height();ad+=ab}}r-=c.topCapHeight+c.bottomCapHeight;ak.css({height:r+"px",top:ad+"px"});var ag=a(this).css({position:"absolute",overflow:"visible"});var d;var F;var I;var af=0;var C=R*ao/2;var G=function(ap,ar){var aq=ar=="X"?"Left":"Top";return ap["page"+ar]||(ap["client"+ar]+(document.documentElement["scroll"+aq]||document.body["scroll"+aq]))||0};var O=function(){return false};var ae=function(){X();d=u.offset(false);d.top-=af;F=r-u[0].offsetHeight;I=2*c.wheelSpeed*F/W};var e=function(p){ae();C=G(p,"Y")-af-d.top;a("html").bind("mouseup",z).bind("mousemove",Q);if(a.browser.msie){a("html").bind("dragstart",O).bind("selectstart",O)}return false};var z=function(){a("html").unbind("mouseup",z).unbind("mousemove",Q);C=R*ao/2;if(a.browser.msie){a("html").unbind("dragstart",O).unbind("selectstart",O)}};var ai=function(ap){j.scrollTop(0);ap=ap<0?0:(ap>F?F:ap);af=ap;u.css({top:ap+"px"});var aq=ap/F;t.data("jScrollPanePosition",(ao-W)*-aq);ag.css({top:((ao-W)*aq)+"px"});t.trigger("scroll");if(c.showArrows){v[ap==0?"addClass":"removeClass"]("disabled");
m[ap==F?"addClass":"removeClass"]("disabled")}};var Q=function(p){ai(G(p,"Y")-d.top-C)};var Z=Math.max(Math.min(R*(ao-c.arrowSize*2),c.dragMaxHeight),c.dragMinHeight);u.css({height:Z+"px"}).bind("mousedown",e);var T;var w;var l;var ac=function(){if(w>8||w%4==0){ai((af-((af-l)/2)))}w++};var al=function(){clearInterval(T);a("html").unbind("mouseup",al).unbind("mousemove",N)};var N=function(p){l=G(p,"Y")-d.top-C};var A=function(p){ae();N(p);w=0;a("html").bind("mouseup",al).bind("mousemove",N);T=setInterval(ac,100);ac();return false};ak.bind("mousedown",A);j.bind("mousewheel",function(ap,ar){ar=ar||(ap.wheelDelta?ap.wheelDelta/120:(ap.detail)?-ap.detail/3:0);ae();X();var aq=af;ai(af-ar*I);var p=aq!=af;return !p});var f;var D;function J(){var p=(f-af)/c.animateStep;if(p>1||p<-1){ai(af+p)}else{ai(f);X()}}var X=function(){if(D){clearInterval(D);delete f}};var ah=function(at,p){if(typeof at=="string"){try{$e=a(at,t)}catch(ar){return}if(!$e.length){return}at=$e.offset().top-t.offset().top}X();var aq=W-ao;at=at>aq?aq:at;t.data("jScrollPaneMaxScroll",aq);var ap=at/aq*F;if(p||!c.animateTo){ai(ap)}else{j.scrollTop(0);f=ap;D=setInterval(J,c.animateInterval)}};t[0].scrollTo=ah;t[0].scrollBy=function(ap){var p=-parseInt(ag.css("top"))||0;ah(p+ap)};ae();ah(-an,true);a("*",this).bind("focus",function(at){var ar=a(this);var av=0;while(ar[0]!=t[0]){av+=ar.position().top;ar=ar.offsetParent()}var p=-parseInt(ag.css("top"))||0;var au=p+ao;var aq=av>p&&av<au;if(!aq){var ap=av-c.scrollbarMargin;if(av>p){ap+=a(this).height()+15+c.scrollbarMargin-ao}ah(ap)}});if(c.observeHash){if(location.hash&&location.hash.length>1){setTimeout(function(){ah(location.hash)},a.browser.safari?100:0)}a(document).bind("click",function(ap){$target=a(ap.target);if($target.is("a")){var p=$target.attr("href");if(p&&p.substr(0,1)=="#"&&p.length>1){setTimeout(function(){ah(p,!c.animateToInternalLinks)},a.browser.safari?100:0)}}})}function B(p){a(document).bind("mousemove.jScrollPaneDragging",x);a(document).bind("mouseup.jScrollPaneDragging",n)}var M;var h;function K(){direction=M<0?-1:1;t[0].scrollBy(M/2)}function k(){if(h){clearInterval(h);h=undefined}}function x(aq){var ar=t.parent().offset().top;var p=ar+ao;var ap=G(aq,"Y");M=ap<ar?ap-ar:(ap>p?ap-p:0);if(M==0){k()}else{if(!h){h=setInterval(K,100)}}}function n(p){a(document).unbind("mousemove.jScrollPaneDragging").unbind("mouseup.jScrollPaneDragging");k()}j.bind("mousedown.jScrollPane",B);a.jScrollPane.active.push(t[0])}else{t.css({height:ao+"px",width:L-this.originalSidePaddingTotal+"px",padding:this.originalPadding});t[0].scrollTo=t[0].scrollBy=function(){};t.parent().unbind("mousewheel").unbind("mousedown.jScrollPane").unbind("keydown.jscrollpane").unbind("keyup.jscrollpane")}})};a.fn.jScrollPaneRemove=function(){a(this).each(function(){$this=a(this);var b=$this.parent();if(b.is(".jScrollPaneContainer")){$this.css({top:"",height:"",width:"",padding:"",overflow:"",position:""});$this.attr("style",$this.data("originalStyleTag"));b.after($this).remove()}})};a.fn.jScrollPane.defaults={scrollbarWidth:10,scrollbarMargin:5,wheelSpeed:18,showArrows:false,arrowSize:0,animateTo:false,dragMinHeight:1,dragMaxHeight:99999,animateInterval:100,animateStep:3,maintainPosition:true,scrollbarOnLeft:false,reinitialiseOnImageLoad:false,tabIndex:0,enableKeyboardNavigation:true,animateToInternalLinks:false,topCapHeight:0,bottomCapHeight:0,observeHash:true};a(window).bind("unload",function(){var c=a.jScrollPane.active;for(var b=0;b<c.length;b++){c[b].scrollTo=c[b].scrollBy=null}})})(jQuery);