function convertPreBlocks() {}

var regular = "x-small";

function bigger(thing){
	thing.style.fontSize = "large";
	
	siblingElement = thing.previousSibling;

	while(siblingElement) {
		if(siblingElement.tagName=="SPAN") {
			siblingElement.style.fontSize = "medium";
			break;
		}
		siblingElement = siblingElement.previousSibling;
	}

	siblingElement = thing.nextSibling;

	while(siblingElement) {
		if(siblingElement.tagName=="SPAN") {
			siblingElement.style.fontSize = "medium";
			break;
		}

		siblingElement = siblingElement.nextSibling;
	}
}

function normal(thing){
	thing.style.fontSize = regular;

	siblingElement = thing.previousSibling;

	while(siblingElement) {
		if(siblingElement.tagName=="SPAN") {
			siblingElement.style.fontSize = regular;
			break;
		}
		siblingElement = siblingElement.previousSibling;
	}

	siblingElement = thing.nextSibling;

	while(siblingElement) {
		if(siblingElement.tagName=="SPAN") {
			siblingElement.style.fontSize = regular;
			break;
		}

		siblingElement = siblingElement.nextSibling;
	}
}