function getCurrent(id) {
	var current = document.getElementById(id).innerHTML;
	return current;
}

function setCurrent(id, new_value) {
	document.getElementById(id).innerHTML = new_value;
}
/*
function doSlide(id) {
	var ids = new Array('main', 'work_0');
	var size = 2;
	var current = getCurrent();
	for (var i=0; i<size; i++) {
		if (ids[i] == current) {
			break;
		}
	}
	for (var j=0; j<size; j++) {
		if (ids[j] == id) {
			break;
		}
	}
	
	if (i==j) {
		return;
	}
	
	if (i<j) {
		while (i<j) {
			Effect.SlideUp(ids[i]);
			i++;
		}
		return;
	}
	
	if (i>j) {
		i--;
		while (i>j) {
			Effect.SlideDown(ids[i]);
			i--;
		}
		return;
	}	
}
*/
function switchContent(id) {
	var content = document.getElementById(id).innerHTML;
	document.getElementById('main').innerHTML = content;
}