rem: z.custom = function(f,t){ if(z.timer) {return null;} this.now=f;z.a();z.io=z.cur();z.s=(new Date()).getTime(); z.timer=setInterval(function(){z.step(f,t);}, 13); 
add: z.custom = function(from,to){ z.startTime = (new Date()).getTime(); z.now = from; z.a();  z.timer = setInterval(function(){ z.step(from, to); }, 13); 
context: 	z.custom = function(f,t){		if(z.timer) {return null;}		this.now=f;z.a();z.io=z.cur();z.s=(new Date()).getTime();		z.timer=setInterval(function(){z.step(f,t);}, 13);	};
meta: 5264	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5264/807c75dadf647a5f07b661ff62c102cd3797479a/fx.js/clean/fx/fx.js