window.onload = function()
{
	if (document.getElementById('switchhorse')) {
		var el = document.getElementById('switchhorse');
		//disable the current horse
		for (var i=0, opts=el.options; i<opts.length; i++) {
			if (opts[i].value == document.domain) {
				opts[i].disabled = true;
				break;
			}
		}
		el.onchange = function() {
			location.href = "http://" + this.options[this.selectedIndex].value + "/trainers-update"
		}
	}
}