function OpenPics(url, iwidth, iheight){
	window.open(url,"afbeelding","width="+iwidth+",height="+iheight+",left=125,top=100");
}

function ValidateSearch(fm)
{
  var err = "";

  if (trim(fm.zoekwoorden.value) == "") { err += "- zoekwoorden.\n"; }

  if (err != "") { 
    window.alert("Vul minimaal één zoekwoord in"); 
    fm.zoekwoorden.value = "";
    return false;

  }
  return true;
}

function trim(value) {
   var temp = value;
   var obj = /^(\s*)([\W\w]*)(\b\s*$)/;
   if (obj.test(temp)) { temp = temp.replace(obj, '$2'); }
   var obj = / +/g;
   temp = temp.replace(obj, " ");
   if (temp == " ") { temp = ""; }
   return temp;
}