function increaseNotesHeight(thisTextarea, add, normal) {
	if (thisTextarea.style.height=='') {
		thisTextarea.style.height = normal + "px";
	}
	if (document.getElementById('notes_height')) {
		document.getElementById('notes_height').value = newHeight;
	}  
	if (thisTextarea) {
		newHeight = parseInt(thisTextarea.style.height) + add;
		thisTextarea.style.height = newHeight + "px";
	}
	if (document.getElementById('notes_height')) {
		document.getElementById('notes_height').value = newHeight;
	}
}

function decreaseNotesHeight(thisTextarea, subtract, normal) {
	if (thisTextarea) {
		if ((parseInt(thisTextarea.style.height) - subtract) > normal) {
			newHeight = parseInt(thisTextarea.style.height) - subtract;
			thisTextarea.style.height = newHeight + "px";
		}
		else {
			newHeight = normal;
			thisTextarea.style.height = normal + "px";
		}			
	}
	if (document.getElementById('notes_height')) {
		document.getElementById('notes_height').value = newHeight;
	}
}