function init()
	{
	preload();
	hoehe();
	}

function bildwechsel()
	{
	if (document.images)
		{
		for (var i=0; i<bildwechsel.arguments.length; i+=2)
			{
			document.getElementById(arguments[i]).src = arguments[i+1];
			}
		}
	}

function hoehe()
	{
	var h = document.getElementById('inhalt').clientHeight;
	if (document.all) h = 20*(Math.floor(h/20)+1)-1;
	else  h = 20*(Math.floor(h/20)+1)+1;
	document.getElementById('inhalt').style.height = h + 'px';
	}

function preload()
	{
	if (document.images)
		{
		isimages = new Object();
		isimages.dummy = new Image();
		isimages.dummy.src = '/demo/images/button-qualitaet-over.gif';
		isimages.dummy.src = '/demo/images/button-arbeitsplaetze-over.gif';
		isimages.dummy.src = '/demo/images/button-lehrstellen-over.gif';
		isimages.dummy.src = '/demo/images/button-suche-over.gif';
		}
	}