var setRoll = 0;
function setVidoRolling () {
	var tg, obj, cnt, timeLimit;

	tg = 1; 
	obj = 'photo_num';
	cnt = 4; 
	timeLimit = 5000; 
	
	var tabv4_now = new Date() 
	var tabv4_sec = tabv4_now.getSeconds() 
	var tabv4_ch = (tabv4_sec % tabv4_cnt)+1 ; 
	
	var alt = (Math.floor(tabv4_sec/5))%4 ;
	
	tabv4_tab(alt);
	
	if (setRoll == 0) {
		setRoll = 1;
		setTimeout("setVidoRolling()", timeLimit);
		return
	}
	setTimeout("setVidoRolling()", timeLimit);
}