var sfNav=new Class({Implements:Options,pn:Class.empty,sn:Class.empty,navtimer:false,options:{closeDelay:400,navonClass:'navon',offsetElement:Class.empty,offPosition:-999,skipPrimaryClass:'nosub',titlePrefix:'',pProp:'rel',sProp:'id'},initialize:function(primaryNav,subNav,options){this.pn=primaryNav;this.sn=subNav;this.setOptions(options);this.pn.each(function(el){if(el.getProperty(this.options.pProp)>''&&!el.hasClass('nosub')){el.addEvent('mouseover',this.navon.pass(el.getProperty(this.options.pProp),this));el.addEvent('mouseout',this.navout.bind(this))}else{el.addEvent('mouseover',this.navoff.bind(this))}},this);this.sn.each(function(el){el.addEvent('mouseenter',this.navon.pass(el.getProperty(this.options.sProp),this));el.addEvent('mouseleave',this.navout.bind(this))},this)},navon:function(sel){var lp=this.options.offPosition;if(this.navtimer){$clear(this.navtimer);this.navtimer=false}if(sel.search(this.options.titlePrefix)==0)sel=sel.substring(this.options.titlePrefix.length);this.pn.each(function(el){if(el.getProperty(this.options.pProp)==sel){if(this.options.offsetElement)lp=el.getCoordinates().left.toInt()-this.options.offsetElement.getCoordinates().left.toInt();else lp=el.getCoordinates().left.toInt();el.addClass(this.options.navonClass)}else{el.removeClass(this.options.navonClass)}},this);sel=this.options.titlePrefix+sel;this.sn.each(function(el){if(el.getProperty(this.options.sProp)==sel){if(lp>=0)el.setStyle('left',lp+'px')}else{el.setStyle('left',this.options.offPosition+'px')}},this)},navout:function(){this.navtimer=this.navoff.delay(this.options.closeDelay,this)},navoff:function(){$clear(this.navtimer);this.pn.each(function(el){el.removeClass(this.options.navonClass)},this);this.sn.each(function(el){el.setStyle('left',this.options.offPosition+'px')},this)}});function checkSubscribe(f){if(f.email.value.search(/^[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i)==-1){alert('Please enter a valid email address.');return false}}window.addEvent('domready',function(){var nav=new sfNav($$('#navigation > ul li a'),$$('#navigation .subnav'),{offsetElement:$('navigation')});if($chk($('ademail'))){$('ademail').addEvent('blur',function(){if(this.get('value')=='')this.set('value','email address')});$('ademail').addEvent('focus',function(){if(this.get('value')=='email address')this.set('value','')})}});