function markering()
{
	this.marks=new Array();
	this.result=new Array();

	this.reset = function()
	{
		this.marks=new Array();
	}

	this.markeer = function(num, waarde)
	{
		waarde=waarde||0;
		this.marks[ parseInt(num, 10) ]=waarde;
	}

	this.gemarkeerd = function(num)
	{
		return this.marks[ parseInt(num, 10) ]||0;
	}

	this.getlijst = function()
	{
		var tmpar=new Array()
		for(var tl=0; tl<1000; tl++)
		{
			if(this.gemarkeerd(tl)) tmpar[tmpar.length]=tl;
		}
		tmpar.sort();
		this.result=tmpar;
		return tmpar;
	}
}