/*
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Titel: HNO Praxis Eidelstedt JavaScript
Autor: Dumrath & Fassnacht KG (sti)
URL: http://www.duf-online.de/

Erstellt : 2006-01-11
Bearbeitet: 2006-02-08
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*/

// Load Event //

function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	} else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}

// Mailverschlüsselung //

function setMailLinkLabel(An, Dn, En, Lb) {
	var LinkText = An + "@" + Dn + "." + En;
	document.open();
	document.write("E-Mail: <a href=\"mailto:" + LinkText + "\">" + Lb + "<\/a>");
	document.close();
}

function setMailLink(An, Dn, En, Lb) {
	var LinkText = An + "@" + Dn + "." + En;
	document.open();
	document.write("<a href=\"mailto:" + LinkText + "\">" + Lb + "<\/a>");
	document.close();
}

function mailLinkReturn(An, Dn, En, Lb) {
	var LinkText = An + "@" + Dn + "." + En;
	var LinkText = "<a href=\"mailto:" + LinkText + "\">" + Lb + "<\/a>";
	return LinkText;
}

// Framing deaktivieren //

if(top!=self) {
	top.location=self.location;
}

// Labelklick setzt Fokus auf Eingabe //

function focusLabels() {
	if (!document.getElementsByTagName) return false;
	var labels = document.getElementsByTagName("label");
	for (var i=0; i<labels.length; i++) {
		if (!labels[i].getAttribute("for")) continue;
		labels[i].onclick = function() {
			var id = this.getAttribute("for");
			if (!document.getElementById(id)) return false;
			var element = document.getElementById(id);
			element.focus();
		}
	}
}

// Feldinhalte zurücksetzten //

function resetFields(whichform) {
	for (var i=0; i<whichform.elements.length; i++) {
		var element = whichform.elements[i];
		if (element.type == "submit") continue;
		if (!element.defaultValue) continue;
		element.onfocus = function() {
			if (this.value == this.defaultValue) {
				this.value = "";
			}
		}
		element.onblur = function() {
			if (this.value == "") {
				this.value = this.defaultValue;
			}
		}
	}
}

// Formularelemente vorbereiten //

function prepareForms() {
	for (var i=0; i<document.forms.length; i++) {
		var thisform = document.forms[i];
		resetFields(thisform);
	}
}

addLoadEvent(focusLabels);
addLoadEvent(prepareForms);