function SelText(form,field,content)
{
	if (document.forms[form].elements[field].value == content)
	{
	document.forms[form].elements[field].value = "";
	}
}

 function startSearch() {
 searchString = document.zoekform.zoekterm.value;
 if ( searchString != "" && searchString != "Trefwoord(en)" ) {
	 window.open("/home.php?zoekterm=" + searchString + "&zoekregio=" + document.zoekform.zoekregio.value, "_self"); }
	 }