function minHeight(objectID, minHeight) {	
	if (document.getElementById) {
		var c_height = document.getElementById(objectID).offsetHeight;
		
		if (c_height < minHeight) {
			document.getElementById(objectID).style.height = minHeight + 'px';
		}
	}
}
function setHeights() {
	var h = 390;
	minHeight("inner-left", h);
	minHeight("inner-main", h);
	minHeight("inner-sidebar", h);
	var l = document.getElementById("left").offsetHeight;
	var r = document.getElementById("right").offsetHeight;
	if (l > r) {
		minHeight("right", l);	
	} else {
		minHeight("left", r);
	}
}
function setEffects() {
	if (btn == 5) {
		document.getElementById("button5").className = "normal";
		document.getElementById("flex5").style.display = "none";	
		document.getElementById("flex0").style.display = "block";
		btn = 0;
	} else {
		if (btn > 0) document.getElementById("button"+btn).className = "normal";
		document.getElementById("flex"+btn).style.display = "none";	
		btn += 1;
		document.getElementById("flex"+btn).style.display = "block";
		document.getElementById("button"+btn).className = "over";
	}
}