jQuery.timer=function(interval,callback)
{var interval=interval||100;if(!callback)
return false;_timer=function(interval,callback){this.stop=function(){clearInterval(self.id);};this.internalCallback=function(){callback(self);};this.reset=function(val){if(self.id)
clearInterval(self.id);var val=val||100;this.id=setInterval(this.internalCallback,val);};this.interval=interval;this.id=setInterval(this.internalCallback,this.interval);var self=this;};return new _timer(interval,callback);};