var n = 0;
var pic_num = 5;
function Mea(value) {
	n = value;
	setBg(value);
	plays(value);
}
function setBg(value) {
	for ( var i = 0; i < pic_num; i++)
		document.getElementById("t" + i + "").className = "bg";
	document.getElementById("t" + value + "").className = "active";
}
function plays(value) {
	var d = document.getElementById("au").getElementsByTagName("div");
	for (i = 0; i < pic_num; i++)
		i == value ? d[i].style.display = "block"
				: d[i].style.display = "none";
}

function clearAuto() {
	clearInterval(autoStart);
}
function setAuto() {
	autoStart = setInterval("auto(n)", 4000);
}
function auto() {
	n++;
	if (n > pic_num-1)
		n = 0;
	Mea(n);
}
setAuto();



function tabss_z(o,o2,n,o1c,o2c){
	var m_n = document.getElementById(o).getElementsByTagName(o1c);
	var c_n = document.getElementById(o2).getElementsByTagName(o2c);
	for(i=0;i<m_n.length;i++){
		m_n[i].className=i==n?"over":"out";
		c_n[i].className=i==n?"dis":"undis";
	}
}