function brandplay(show, total){
	//alert(show);
	
	var randomnumber1=Math.floor(Math.random()*show) + 1;
	var randomnumber2=Math.floor(Math.random()*(total-show)) + 1 + show;
	
	//alert(randomnumber1 + " " + randomnumber2);
	
	var element1 = this.document.getElementById("brand" + randomnumber1);
	var element2 = this.document.getElementById("brand" + randomnumber2);
	
	//alert(randomnumber1);
	
	var tmp = element1.src;
	element1.src = element2.src;
	element2.src = tmp;
	
	t=setTimeout('brandplay('+show+','+total+')',3000);

}