var Split2Menu=new Class({initialize:function(el,options){this.options=Object.extend({minwidth:0,maxwidth:0,offwidth:50,navwidth:0,showactive:true},options||{});if(!el)return;this.element=$(el);items=this.element.getChildren();if(items.length<2)return;this._active=0;var hw=0;var sp=this.element.getElements('span')[0].getStyle('padding-left').toInt()+this.element.getElements('span')[0].getStyle('padding-right').toInt();if(this.options.showactive){if(!this.options.minwidth||!this.options.maxwidth)
{if(!this.options.navwidth)this.options.navwidth=this.element.offsetWidth;this.options.minwidth=Math.round((this.options.navwidth-this.options.offwidth)/items.length);this.options.maxwidth=this.options.navwidth-this.options.minwidth*(items.length-1);}
hw=this.options.minwidth}else{if(this.options.minwidth&&this.options.maxwidth)
{this.options.normalwidth=Math.floor(((items.length-1)*this.options.minwidth+this.options.maxwidth)/items.length);}else{if(!this.options.navwidth)this.options.navwidth=this.element.offsetWidth;this.options.normalwidth=Math.floor(this.options.navwidth/items.length);this.options.navwidth=this.options.normalwidth*items.length
this.options.minwidth=this.options.normalwidth-Math.round(this.options.offwidth/(items.length-1));this.options.maxwidth=this.options.navwidth-this.options.minwidth*(items.length-1);}
hw=this.options.normalwidth}
var fx=new Fx.Elements(items,{wait:false,duration:200,transition:Fx.Transitions.quadOut});items.each(function(item,i){if(this.options.showactive){if(item.className.test('active'))
{this._active=i;item.setStyle('width',this.options.maxwidth);}else{item.setStyle('width',this.options.minwidth);}}else{item.setStyle('width',this.options.normalwidth);}
item.getElements('span').setStyle('width',hw-sp);if(item.getElements('img'))
{item.getElements('a').setStyles({'position':'relative','overflow':'hidden'});item.getElements('img').setStyles({'position':'absolute','left':(hw+1)+'px'});}else{item.getElements('a').setStyle('background-position',(hw+1)+'px 0');}
item.addEvent('mouseenter',function(e){var obj={};obj[i]={'width':[item.getStyle('width').toInt(),this.options.maxwidth]};items.each(function(other,j){if(other!=item){var w=other.getStyle('width').toInt();if(w!=this.options.minwidth)obj[j]={'width':[w,this.options.minwidth]};}}.bind(this));fx.start(obj);}.bind(this));}.bind(this));this.element.setStyles({'width':this.options.navwidth+5,'visibility':'visible'});this.element.addEvent('mouseleave',function(e){if(this.options.showactive)
{this._doactive();}else{var obj={};items.each(function(other,j){obj[j]={'width':[other.getStyle('width').toInt(),this.options.normalwidth]};}.bind(this));fx.start(obj);}}.bind(this));if(this.options.showactive)
{this._doactive=function(){var obj={};var item=items[this._active]
obj[this._active]={'width':[item.getStyle('width').toInt(),this.options.maxwidth]};items.each(function(other,j){if(other!=item){var w=other.getStyle('width').toInt();if(w!=this.options.minwidth)obj[j]={'width':[w,this.options.minwidth]};}}.bind(this));fx.start(obj);}.bind(this);}}});