var aVideoTips = new Array();

aVideoTips[0] = "/assets/videoTip0";
aVideoTips[1] = "/assets/videoTip1";
aVideoTips[2] = "/assets/videoTip2";
aVideoTips[3] = "/assets/videoTip3";
aVideoTips[4] = "/assets/videoTip4";

var iVideoTipTimer;

function getVideoTipUrl() {
	var whichVideoTip = Math.floor(Math.random() * 5) + 1;
	return aVideoTips[whichVideoTip];
} 

function tryVideoTip() {
	if (document.getElementById("videoTip2")) {
		try {
			com.reuters.rcom.utils.replaceContent('videoTip2', getVideoTipUrl(), null, null);	
		} catch (e) {
			iVideoTipTimer = setTimeout(tryVideoTip, 500);
		}
	} else {
		iVideoTipTimer = setTimeout(tryVideoTip, 500);
	}
}
	
tryVideoTip();