function rmt( tagname )
{
	var ar_el = document.getElementsByTagName(tagname);
	for( var i=0; i<ar_el.length; i++ )
		ar_el[i].style.display = ar_el[i].style.display == 'none' ? 'block' : 'none';
	return false;
}

function readSize()
{
	var fSize = readCookie('inprofSize');
	if( fSize == null )
		changeSize(0);
	else
		changeSize( fSize );
}

function changeSize(fSize)
{
	var body 			= document.getElementById('inhalt');
	var fontIncrease 	= parseInt(fSize);
	var currentFontSize = body.style.fontSize != '' ? parseInt(body.style.fontSize) : 100;
	if( fontIncrease != 0 )
    	var newFontSize 	= currentFontSize + fontIncrease;
    else
    	var newFontSize 	= 100;
	body.style.fontSize = newFontSize + "%";	
	createCookie('inprofSize', parseInt(body.style.fontSize)-100, 1);
	//eraseCookie('inprofSize');
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

function collapseAll() {
    var klapptextlinks = document.getElementById("klapptexte").getElementsByTagName("p");
    for (i=0; i<klapptextlinks.length; i++) {
       var links = klapptextlinks[i].getElementsByTagName("a");
       links[0].className = "expandImg";
       links[1].className = "";
    }
    var klapptexte = document.getElementById("klapptexte").getElementsByTagName("div");
    for (i=0; i<klapptexte.length; i++) {
	   klapptexte[i].className = "expandText";
	   klapptexte[i].expanded = false;
    }
}

function expandText(id) {
	var klapptext = document.getElementById("klapptext"+id);
	var expanded = !klapptext.expanded?true:false;
    collapseAll();
	klapptext.expanded = expanded;
	klapptext.className = expanded?"collapseText":"expandText";
	document.getElementById("expandImg"+id).className = expanded?"collapseImg":"expandImg";
}

function expandText2(id) {
	var klapptext = document.getElementById("klapptext"+id);
	var expanded = !klapptext.expanded?true:false;
    collapseAll();
	klapptext.expanded = expanded;
	klapptext.className = expanded?"collapseText2":"expandText";
	document.getElementById("expandImg"+id).className = expanded?"collapseImg":"expandImg";
	document.getElementById("expandLink"+id).className = expanded?"expanded":"";
}