function changeInputType(
  oldElm, // a reference to the input element
  iType, // value of the type property: 'text' or 'password'
  iValue, // the default value, set to 'password' in the demo
  blankValue, // true if the value should be empty, false otherwise
  noFocus) {  // set to true if the element should not be given focus
	if(!oldElm || !oldElm.parentNode || (iType.length<4) || !document.getElementById || !document.createElement) return;
	var newElm = document.createElement('input');
	newElm.type = iType;
	if(oldElm.name) newElm.name = oldElm.name;
	if(oldElm.id) newElm.id = oldElm.id;
	if(oldElm.className) newElm.className = oldElm.className;
	if(oldElm.size) newElm.size = oldElm.size;
	if(oldElm.tabIndex) newElm.tabIndex = oldElm.tabIndex;
	if(oldElm.accessKey) newElm.accessKey = oldElm.accessKey;
	if(oldElm.style.marginTop) newElm.style.marginTop = oldElm.style.marginTop;
	// hasFocus is to prevent a loop where onfocus is triggered over and over again
	newElm.hasFocus=false;
	oldElm.parentNode.replaceChild(newElm,oldElm);
	if(!blankValue) newElm.value = iValue;
	if(!noFocus || typeof(noFocus)=='undefined') {
		window.tempElm = newElm;
		setTimeout("tempElm.hasFocus=true;tempElm.focus();",1);
	}
	return newElm;
}

function changeFont() {
	//if (!document.thisFontSize) document.thisFontSize = 'small';
	if (document.thisFontSize == 'big') document.location.reload(); else document.thisFontSize = 'big';

	if (document.getElementById('rightcontent')) {
		if (document.thisFontSize == 'small') {
			document.getElementById('leftcontent').style.width='420px';
			document.getElementById('rightcontent').style.display='block';
		} else {
			document.getElementById('rightcontent').style.display='none';
			document.getElementById('leftcontent').style.width='550px';
		}
	}

	var startElement = document.getElementById('contenttext');

	// walk through all child nodes
	walkTree(startElement, document.thisFontSize);
}

function walkTree(start, thisFontSize) {
	if (start.style) {
		if (thisFontSize == 'small') start.style.fontSize = '11px'; else start.style.fontSize = '20px';
	}

	if (start.childNodes.length != 0) {
		for (var x = 0; x < start.childNodes.length; x++) walkTree(start.childNodes[x], thisFontSize);
	}
}

	function eventAdd(aobject, aeventstring, afunction) {
		if(window.addEventListener){ // Mozilla, Netscape, Firefox
			aobject.addEventListener(aeventstring, afunction, false);
		} else { // IE
			aobject.attachEvent('on' + aeventstring, afunction);
		}
	}
	function loading() {
		while ( (document.getElementById('leftbarcontent').offsetHeight + document.getElementById('menu').offsetHeight) > document.getElementById('contentcenter').offsetHeight) {
			document.getElementById('contentcenter').innerHTML += '<br /><br />';
		}

	}
	eventAdd(window, 'load', loading);