function check_searchtype(obj) {
	hide_layer("neugeraete")
	hide_layer("gebrauchtgeraete")
	hide_layer("vermietung")

	switch (obj.value) {
		case "1":
			show_layer("neugeraete")
			break;

		case "2":
			show_layer("gebrauchtgeraete")
			break;
			
		case "3":
			show_layer("vermietung")
			break;
	}
}

function hide_layer(id) {
	var obj

	if (document.getElementById) {
		obj = document.getElementById(id)
		obj.style.visibility = "hidden"
	}
}

function show_layer(id) {
	var obj

	if (document.getElementById) {
		obj = document.getElementById(id)
		obj.style.visibility = "visible"
	}
}

function check_email(obj) {
	str = obj.email.value

	if (str.indexOf("@") == -1 || str.indexOf("@") != str.lastIndexOf("@")) {
		alert("Bitte geben Sie eine E-Mail-Adresse ein.")
		return false
	}

	return true
}

function show_image(s, f) {
	var width

	if (window.innerWidth) {
		width = window.innerWidth
	}
	else if (document.body.clientWidth) {
		width = document.body.clientWidth
	}
	else {
		// That's when ya lost
		width = 800
	}

	width = parseInt(width * f)
	document.write('<img src="/image/' + s + '" width="' + width + '" alt=""')
}

function load_images() {
	if (!document.images) {
		return
	}

	var img

	img = new Image
	img.src = "/image/de.gif"
	img.src = "/image/de2.gif"
	img.src = "/image/en.gif"
	img.src = "/image/en2.gif"
	img.src = "/image/fr.gif"
	img.src = "/image/fr2.gif"
	img.src = "/image/es.gif"
	img.src = "/image/es2.gif"
	img.src = "/image/ru.gif"
	img.src = "/image/ru2.gif"
}

function next_field(o) {
	var found = false
	var form = o.form
	var i
	
	for (i = 0; i < form.elements.length; i++) {
		if (found && form.elements[i].type != 'hidden' && form.elements[i].type != 'button') {
			break
		}
		if (o == form.elements[i]) {
			found = true;
		}
	}
	return form.elements[i % form.elements.length];
}

function return_to_tab(o, e) {
	var k = document.layers ? e.which : document.all ? e.keyCode : e.keyCode;
	var o2

	if (k != 13) {
		return true
	}
	else {
		o2 = next_field(o);
		o2.focus()
		if (o2.type == 'text') {
			o2.select()
		}
		return false;
	}
}


load_images()