//preload images for 'mezelf' and 'anders'
var imgMezelfOn = new Image(200, 50);
imgMezelfOn.src = baseUrl() + '/images/button_big-voor_mezelf_active.gif';

var imgAndersOn = new Image(200, 50);
imgAndersOn.src = baseUrl() + '/images/button_big-voor_iemand_anders_active.gif';

function checkField()
{
	var field = document.getElementById('who');
	var stap1Form = document.getElementById('stap1Form');
	
	if(field.value == '')
	{
		return false;
	}

	return true;
}

function setField(value)
{
	var field = document.getElementById('who');
	var mezelf = document.getElementById('mezelf');
	var anders = document.getElementById('anders');

	field.value = value;
	
	if(value == 1)
	{
		mezelf.src = imgMezelfOn.src;
		anders.src = baseUrl() + '/images/button_big-voor_iemand_anders.gif';
	}
	else
	{
		mezelf.src = baseUrl() + '/images/button_big-voor_mezelf.gif';
		anders.src = imgAndersOn.src;
	}
}