var rafDetect=navigator.userAgent.toLowerCase();var rafOS,rafBrowser,rafVersion,rafTotal,rafThestring;function rafGetBrowserInfo(){if(rafCheckIt('konqueror')){rafBrowser="Konqueror";rafOS="Linux";}
else if(rafCheckIt('safari'))rafBrowser="Safari"
else if(rafCheckIt('omniweb'))rafBrowser="OmniWeb"
else if(rafCheckIt('opera'))rafBrowser="Opera"
else if(rafCheckIt('webtv'))rafBrowser="WebTV";else if(rafCheckIt('icab'))rafBrowser="iCab"
else if(rafCheckIt('msie'))rafBrowser="Internet Explorer"
else if(!rafCheckIt('compatible')){rafBrowser="Netscape Navigator"
rafVersion=rafDetect.charAt(8);}
else rafBrowser="An unknown browser";if(!rafVersion)rafVersion=rafDetect.charAt(place+rafThestring.length);if(!rafOS){if(rafCheckIt('linux'))rafOS="Linux";else if(rafCheckIt('x11'))rafOS="Unix";else if(rafCheckIt('mac'))rafOS="Mac"
else if(rafCheckIt('win'))rafOS="Windows"
else rafOS="an unknown operating system";}}
function rafCheckIt(string){place=rafDetect.indexOf(string)+1;rafThestring=string;return place;}
Event.observe(window,'load',rafGetBrowserInfo,false);var Referafriend=Class.create();Referafriend.prototype={yPos:0,xPos:0,isLoaded:false,initialize:function(ctrl,url){if(url){this.content=url;}else{this.content=ctrl.href;}
ctrl.observe('click',function(event){this.activate();Event.stop(event);}.bind(this));$('referafriend').hide().observe('click',(function(event){if(event.element().id=='referafriend-cancel')this.deactivate();}).bind(this));},activate:function(){if(rafBrowser=='Internet Explorer'){this.getScroll();this.prepareIE('100%','hidden');this.setScroll(0,0);this.hideSelects('hidden');}
this.displayReferafriend("block");},prepareIE:function(height,overflow){bod=document.getElementsByTagName('body')[0];bod.style.height=height;bod.style.overflow=overflow;htm=document.getElementsByTagName('html')[0];htm.style.height=height;htm.style.overflow=overflow;},hideSelects:function(visibility){selects=document.getElementsByTagName('select');for(i=0;i<selects.length;i++){selects[i].style.visibility=visibility;}},getScroll:function(){if(self.pageYOffset){this.yPos=self.pageYOffset;}else if(document.documentElement&&document.documentElement.scrollTop){this.yPos=document.documentElement.scrollTop;}else if(document.body){this.yPos=document.body.scrollTop;}},setScroll:function(x,y){window.scrollTo(x,y);},displayReferafriend:function(display){$('referafriend-overlay').style.display=display;$('referafriend').style.display=display;if(display!='none')this.loadInfo();},loadInfo:function(){$('referafriend').className="loading";var myAjax=new Ajax.Request(this.content,{method:'post',parameters:"",onComplete:this.processInfo.bindAsEventListener(this)});},processInfo:function(response){$('rafContent').update(response.responseText);$('referafriend').className="done";this.isLoaded=true;this.actions();},actions:function(){rafActions=document.getElementsByClassName('rafAction');},deactivate:function(){if(rafBrowser=="Internet Explorer"){this.setScroll(0,this.yPos);this.prepareIE("auto","auto");this.hideSelects("visible");}
this.displayReferafriend("none");}}
function addReferafriendMarkup(){bod=document.getElementsByTagName('body')[0];overlay=document.createElement('div');overlay.id='referafriend-overlay';raf=document.createElement('div');raf.id='referafriend';raf.className='loading';raf.innerHTML='<div id="rafLoadMessage">'+'<p>Loading</p>'+'</div>';bod.appendChild(overlay);bod.appendChild(raf);}
var ReferafriendForm=Class.create();ReferafriendForm.prototype={initialize:function(form){this.form=form;if($(this.form)){this.sendUrl=$(this.form).action;$(this.form).observe('submit',function(event){this.send();Event.stop(event);}.bind(this));}
this.loadWaiting=false;this.validator=new Validation(this.form);this.onSuccess=this.success.bindAsEventListener(this);this.onComplete=this.resetLoadWaiting.bindAsEventListener(this);this.onFailure=this.resetLoadWaiting.bindAsEventListener(this);var container=$('invite-login-container');if(container&&container.style.display=='none'){this._disableEnableAll(container,true);}},send:function(){if(!this.validator.validate()){return false;}
this.setLoadWaiting(true);var request=new Ajax.Request(this.sendUrl,{method:'post',onComplete:this.onComplete,onSuccess:this.onSuccess,onFailure:this.onFailure,parameters:Form.serialize(this.form)});},success:function(transport){this.resetLoadWaiting();if(transport&&transport.responseText){try{response=eval('('+transport.responseText+')');}
catch(e){response={};}}
if(response.error){if(response.error_type=='no_login'){var container=$('invite-login-container');if(container){container.show();this._disableEnableAll(container,false);}}
if((typeof response.message)=='string'){alert(response.message);}else{alert(response.message.join("\n"));}
return false;}
$('rafContent').update(transport.responseText);},_disableEnableAll:function(element,isDisabled){var descendants=element.descendants();for(var k in descendants){descendants[k].disabled=isDisabled;}
element.disabled=isDisabled;},setLoadWaiting:function(isDisabled){var container=$('invite-button-container');if(isDisabled){container.setStyle({opacity:.5});this._disableEnableAll(container,true);Element.show('invite-please-wait');this.loadWaiting=true;}else{container.setStyle({opacity:1});this._disableEnableAll(container,false);Element.hide('invite-please-wait');this.loadWaiting=false;}},resetLoadWaiting:function(transport){this.setLoadWaiting(false);}}