function check_edi() {
  if(document.searchForm.edition.checked) {
		document.searchForm.avh.checked = true;
		document.searchForm.cmg.checked = true;
		document.searchForm.erbkam.checked = true;
		document.searchForm.gcs.checked = true;
		document.searchForm.ig.checked = true;
		document.searchForm.mega.checked = true;
		document.searchForm.mgh.checked = true;
		document.searchForm.turfan.checked = true;
  }

  else {
    document.searchForm.avh.checked = false;
		document.searchForm.cmg.checked = false;
		document.searchForm.erbkam.checked = false;
		document.searchForm.gcs.checked = false;
		document.searchForm.ig.checked = false;
		document.searchForm.mega.checked = false;
		document.searchForm.mgh.checked = false;
		document.searchForm.turfan.checked = false;
  }
}

function check_wort() {
  if(document.searchForm.woerterbuch.checked) {
		document.searchForm.dwb.checked = true;
		document.searchForm.gwb.checked = true;
		document.searchForm.wdg.checked = true;
  }

  else {
    document.searchForm.dwb.checked = false;
		document.searchForm.gwb.checked = false;
		document.searchForm.wdg.checked = false;
  }
}

function check_bio() {
  if(document.searchForm.bibliographie.checked) {
		document.searchForm.jdg.checked = true;
  }

  else {
    document.searchForm.jdg.checked = false;
  }
}

function check_varia() {
  if(document.searchForm.neuigkeit.checked) {
		document.searchForm.cvma.checked = true;
		document.searchForm.pmbz.checked = true;
  }

  else {
    document.searchForm.cvma.checked = false;
		document.searchForm.pmbz.checked = false;
  }
}

function signs(letter) {
  document.searchForm.qString.value = document.searchForm.qString.value+letter;
}

function over(name) {
  document.getElementById(name).style.backgroundColor = "#D6EFF7";
}
function out(name) {
  document.getElementById(name).style.backgroundColor = "#FFFFFF";
}