function showimage(source){
	document.getElementById('sloep_preview').src='/images/'+source;
}
function overthumb(id,source){
	document.getElementById(id).src='/images/'+source;
}
function bigimage(source){
	document.getElementById('sloep_image').getElementsByTagName('img')[0].src='/images/sloepen/image_'+source;
}
function changesloepimage(source){
	//alert("test");
	document.getElementById('sloepimage').src='/images/thumb_sloepverhuur_'+source+'.jpg';
}