function autoChangeExpand(name)
{
	if(document.getElementById(name))
	{
		expand(name, document.getElementById(name).className=="visible" ? false : true );
	}
}
function expand(id, booleen)
{
	if(document.getElementById(id))
		document.getElementById(id).className = (booleen==true) ? "visible" : "invisible" ;
}
function changeClassName(id, className)
{
	if( document.getElementById(id))
	{
		document.getElementById(id).className = className;
	}
}
function changeTitle(id, val)
{
	if( document.getElementById(id))
	{
		document.getElementById(id).title = val;
	}
}