var tfb={};
tfb.allowedLabels=["follow-me","follow-us","follow","my-twitter"];
tfb.defaultTop=78;
tfb.defaultColor="#35ccff";
tfb.isInArray=function(str,ar){
	if(ar.length<1)return;
		for(var i=0;i<ar.length;i++){
			if(ar[i]==str){
				return true;break;
				}
		}
	return false;
	}

tfb.showbadge=function(){
	if(!window.XMLHttpRequest){
		return;
	}
	if(document.getElementById('twitterFollowBadge')){
		document.body.removeChild(document.getElementById('twitterFollowBadge'));
	}
	
	if(tfb.top<0||tfb.top>1000||isNaN(tfb.top)){
		tfb.top=tfb.defaultTop;
	}

	if(!tfb.isInArray(tfb.label,tfb.allowedLabels)){
		tfb.label=tfb.allowedLabels[0];
	}
	
	var validColorPattern=/^#([a-f]|[A-F]|[0-9]){3}(([a-f]|[A-F]|[0-9]){3})?$/;
	if(!validColorPattern.test(tfb.color)||(tfb.color.length!=4&&tfb.color.length!=7)){
		tfb.color=tfb.defaultColor;
		};
	
	if(tfb.side!='l'){
		tfb.side='r';
		}
		
		tfb.tabStyleCode='position:fixed;'+'top:'+tfb.top+'px;'+'width:30px;'+'height:119px;'+'z-index:8765;'+'cursor:pointer;'+'background:'+tfb.color+' url(http://www.go2web20.net/twitterfollowbadge/1.0/bg-badge/'+tfb.label+'.png);'+'background-repeat:no-repeat;';
		
		tfb.aboutStyleCode='position:fixed;'+'top:'+(parseInt(tfb.top)+107)+'px;'+'width:10px;'+'height:11px;'+'z-index:9876;'+'cursor:pointer;'+'background:url(http://www.go2web20.net/twitterfollowbadge/1.0/icon-about.png);'+'background-repeat:no-repeat;';
	
	if(tfb.side=='l')
		{
		tfb.tabStyleCode+='left:0; background-position:right top;';
		tfb.aboutStyleCode+='left:0;';
	}else{
		tfb.tabStyleCode+='right:0; background-position:left top;';
		tfb.aboutStyleCode+='right:0;';
	}
	
	tfbMainDiv=document.createElement('div');
	tfbMainDiv.setAttribute('id','twitterFollowBadge');
	document.body.appendChild(tfbMainDiv);tfbMainDiv.innerHTML='<div id="tfbTab" style="'+tfb.tabStyleCode+'"></div><div id="tfbAbout" style="'+tfb.aboutStyleCode+'"></div>'+'<style>#tfbAbout{visibility:hidden;} #twitterFollowBadge:hover #tfbAbout{visibility:visible;}</style>';
	document.getElementById('tfbTab').onclick=function(){
		window.open('http://www.go2web20.net/twitterfollowbadge/redir.htm?'+tfb.account);
		}
	document.getElementById('tfbAbout').onclick=function(){
		window.open('http://www.go2web20.net/twitterFollowBadge/');
		}
}