// JavaScript Document

function init(){

	var avail = window.screen.availWidth;
	var width = window.screen.width
	var arrow = document.getElementById("arrowContainer");
	var arrowB = document.getElementById("arrowLow");
	var arrowC = document.getElementById("arrowHigh");
	
	window.onerror=null;

	if(avail < 1000){
		arrow.style.display = "none";
		arrow.style.visibility='hidden';
		arrowB.style.display = "none";
		arrowB.style.visibility='hidden';
		arrowC.style.display = "none";
		arrowC.style.visibility='hidden';
	}
	
}
function initSelect()
{
	var theSelect = document.getElementById("selector");

	theSelect.changed = false;
	theSelect.onfocus = selectFocussed;
	theSelect.onchange = selectChanged;
	theSelect.onkeydown = selectKeyed;
	theSelect.onclick = selectClicked;

	return true;
}




function selectChanged(theElement)
{
	var theSelect;

	if (theElement && theElement.value)
	{
		theSelect = theElement;
	}
	else
	{
		theSelect = this;
	}

	if (!theSelect.changed)
	{
		return false;
	}
    //alert("The select has been changed to " + theSelect.value);
	location.href="content.php?lang=de&folder=" + this.options[this.selectedIndex].value;

	return true;
}




function selectClicked()
{
	this.changed = true;
}




function selectFocussed()
{
	this.initValue = this.value;

	return true;
}




function selectKeyed(e)
{
	var theEvent;
	var keyCodeTab = "9";
	var keyCodeEnter = "13";
	var keyCodeEsc = "27";

	if (e)
	{
		theEvent = e;
	}
	else
	{
		theEvent = event;
	}

	if ((theEvent.keyCode == keyCodeEnter || theEvent.keyCode == keyCodeTab) && this.value != this.initValue)
	{
		this.changed = true;
		selectChanged(this);
	}
	else if (theEvent.keyCode == keyCodeEsc)
	{
		this.value = this.initValue;
	}
	else
	{
		this.changed = false;
	}

	return true;
}