function mytooltip(tt2e,tt2obj,imagename,comment){
 linkloc='imagepages/'+imagename+'.html';
 thumbnail='thumbnails/'+imagename+'.jpg';
 tt2ToolTip(tt2e,tt2obj,'Tooltip',15,15,300,500,'<a href='+linkloc+'><img src='+thumbnail+'></a><BR>'+comment);
 }

function thumbicon(imagename, comment){
linkloc='imagepages/'+imagename+'.html';
tooltipcom="onmouseover=\"mytooltip(event,this,'"+imagename+"','"+comment+"')\"";
endpart="<img CLASS=icoon SRC='http://sandernijdam.nl/images/camera.gif'></a>";
document.write("<a href='"+linkloc+"' "+tooltipcom+">"+endpart);
}

document.write("<div id=\"Tooltip\" class=icoonfloat></div>");