// JavaScript Document
var currentSectionID = null; // global.
//
// function to show new content section, hide current section
function showSectionById(sectionID) {
	var el;
	// hide previous section
	if (currentSectionID != null) {
		el = document.getElementById(currentSectionID);
		if (el) {
			el.style.display = "none";
		}
	}
	// show new section
	if (sectionID != '') {
		currentSectionID = sectionID;
		el = document.getElementById(currentSectionID);
		if (el) {
			el.style.display = "block";
		}
	}
}
//
// inserts email address
function insertEmail(text) {
 	lhs = "info";
 	rhs = "kaltemusic.com";
	em = lhs + "@" + rhs;
	if (text == undefined || text == '') {
		text = em;
	}
    document.write("<a href=\"mail" + "to");
    document.write(":" + em);
    document.write("?Subject=Hello\" title=\"Email Kalte\">" + text + "<\/a>");
}