var geograffiti=geograffiti||{};geograffiti.StringBuffer=Class.create({initialize:function(){this.buffer=new Array()},append:function(a){if(!String.isNullOrEmpty(a)){if(arguments.length==1){this.buffer.push(a)}else{this.buffer.push(String.format.apply(this,arguments))}}return this},clear:function(){this.buffer.clear()},toString:function(){return this.buffer.join("")}});