var intervalID = 1;

function control_manager(args) {

	var msec = 0;
	msec = 25;

	var func;

	if (args == "rew") {
		func = "document.ptviewer.panLeft()";
		intervalID = window.setInterval(func, msec, "javascript");
	}
	if (args == "ff") {
		func = "document.ptviewer.panRight()";
		intervalID = window.setInterval(func, msec, "javascript");
	}
	if (args == "zoom_in") {
		func = "document.ptviewer.ZoomIn()";
		intervalID = window.setInterval(func, msec, "javascript");
	}
	if (args == "zoom_out") {
		func = "document.ptviewer.ZoomOut()";
		intervalID = window.setInterval(func, msec, "javascript");
	}
	if (args == "stop") {
		window.clearInterval(intervalID);
	}
	if (args == "stop_stop") {
		document.ptviewer.startAutoPan(0,0,1);
	}

	if (args == "back") {
		document.ptviewer.startAutoPan(-0.5,0,1);
	}
	if (args == "play") {
		document.ptviewer.startAutoPan(0.5,0,1);
	}

}