// JavaScript web-vitalize.de

function hover(objekt, status) {
	document.images[objekt].src = 'images/' + objekt + '_' + status + '.png';
}

function ImgPreload() {
 var d=document,a=arguments;
 if(!d.PL_imgs) d.PL_imgs=new Array();
 for(var i=0; i<a.length; i++) { d.PL_imgs[i]=new Image; d.PL_imgs[i].src=a[i]; }
}

function textSize(dec) {
	var fontsize = 0.8;
	fontsize+=(dec==1)?0.2:(-0.2);
	if (fontsize<0.2) fontsize=0.2;
	document.getElementsByTagName("html").style.fontSize = ""+fontsize+"em";
}

function blenden(name) {
	if ( document.getElementById(name).style.display == 'none' ) {
		document.getElementById(name).style.display = 'block';
	}
	else if ( document.getElementById(name).style.display == 'block' ) {
		document.getElementById(name).style.display = 'none';
	} 
}

function bestaetigung(text, url) {
	if ( confirm(text) )
	{
		location.href = url;
	}
}