function OAnimacja() {
	this.dlugosc=0;
	this.path="/i/";
	this.load=load;
	this.on=on;
	this.off=off;
	function load(imgSrcs) {
	 this.dlugosc=imgSrcs.length;this.imgs= new Array();
	 for (i=0;i<this.dlugosc;i++) { this.imgs[i] = new Image();this.imgs[i].src=this.path+imgSrcs[i];}
	}
	function on(iName,iNo) {
	 for (i=0;i<iName.length;i++) {
		if (!(this [(iName[i])])) {this [(iName[i])] = new Image();this [(iName[i])].src=document [(iName[i])].src;}
		document [(iName[i])].src = this.imgs[(parseInt(iNo[i]))].src;
	 }
	}
	function off(iName) {for (i=0;i<iName.length;i++) {if (this [(iName[i])]) document [(iName[i])].src=this [(iName[i])].src;}}
}