window.tilestack = {};

window.tilestack.checkOverride = function(variable, defaultval) {
	try {
		var newVal = eval(variable);
		return (newVal == null) ? defaultval : newVal;
	} catch(e) {
		return defaultval;
	}
}

window.tilestack.embedFrame = function() {
	var stackW = parseInt(window.tilestack.checkOverride("tilestack_width","512px"));
	var stackH = parseInt(window.tilestack.checkOverride("tilestack_height","170px"));
	var stackN = window.tilestack.checkOverride("tilestack_showNavBar", false);
	stackH += 40;
	var stackName = "ShakeASpear";
	
	document.write('<iframe width="'+stackW+'" height="'+stackH+'" ');
	document.write('	style="border: 0px; overflow: hidden; margin: 0; padding: 0;"');
	document.write('	scrolling="no" frameborder="0" marginwidth="0" marginheight="0"');
	document.write(' 	src="http://www.tilestack.com/embed/' + stackName + '?n='+stackN+'"></iframe>');
}

window.tilestack.embedFrame();