function chgText(txtSize)
{
	switch(txtSize)
	{
		case 1:
			objText = document.getElementById("mystylesheet").href="default.css";
			break;
		case 2:
			objText = document.getElementById("mystylesheet").href="default1.css";
			break;
		case 3:
			objText = document.getElementById("mystylesheet").href="default2.css";
			break;
	}
}