var currProgBtn = 0;
var progBtnTimer = null;

function aniSrc() {
	clearTimeout(progBtnTimer);
	currProgBtn = (currProgBtn <= 20) ? currProgBtn+1 : 1;
	if (document.getElementById) {
		var el1 = 'progBtn' + currProgBtn;
		var el2 = 'progBtn' + (currProgBtn - 1);
		var el3 = 'progBtn' + (currProgBtn - 2);
		var el4 = 'progBtn' + (currProgBtn - 3);
		var el18 = 'progBtn18';
		var el19 = 'progBtn19';
		var el20 = 'progBtn20';
		var el = document.getElementById(el1);
		if (el) {
			el.style.backgroundColor='#CC0000';
		}
		el = document.getElementById(el2);
		if (el) {
			el.style.backgroundColor='#DDDDDD';
		}
		else {
			el = document.getElementById(el20);
			if (el) {
				el.style.backgroundColor='#FFFFFF';
			}
		}
		el = document.getElementById(el3);
		if (el) {
			el.style.backgroundColor='#EEEEEE';
		}
		else {
			el = document.getElementById(el19);
			if (el) {
				el.style.backgroundColor='#FFFFFF';
			}
			el = document.getElementById(el20);
			if (el) {
				el.style.backgroundColor='#FFFFFF';
			}
		}
		el = document.getElementById(el4);
		if (el) {
			el.style.backgroundColor='#FFFFFF';
		}
		else {
			el = document.getElementById(el18);
			if (el) {
				el.style.backgroundColor='#FFFFFF';
			}
			el = document.getElementById(el19);
			if (el) {
				el.style.backgroundColor='#FFFFFF';
			}
			el = document.getElementById(el20);
			if (el) {
				el.style.backgroundColor='#FFFFFF';
			}
		}
		progBtnTimer = setTimeout('aniSrc()', 100);
	}
}