function focus_eingabe(mySearchterm, mySearchfield) {
   var mySearchterm = mySearchterm;
   if(document.formsearch.elements[mySearchfield].value == mySearchterm) {
      document.formsearch.elements[mySearchfield].value = "";
   }
}

function blur_eingabe(mySearchterm, mySearchfield) {
   var mySearchterm = mySearchterm;
   if(document.formsearch.elements[mySearchfield].value == '') {
      document.formsearch.elements[mySearchfield].value = mySearchterm;
   }
}