function datuakJaso() {
  var emaitza = document.formuH.elements['c'].value;
  if (emaitza != '') {
    with (document.corpusFormu) {
	for (var d = 0; d < elements.length; d++) {
	    if (elements[d].name.indexOf('check_',0) != -1) {
		referen = elements[d].name.substring(6,elements[d].name.length-2);
	        if (emaitza.indexOf(referen,0) != -1) {
		    elements[d].checked = true;
		} else {
		    elements[d].checked = false;
		}
	    }
	}
    }
  }
}

function ezarri() {
    var emaitza = '';
    with (document.corpusFormu) {
	for (var d = 0; d < elements.length; d++) {
	    if (elements[d].name.indexOf('check_',0) != -1) {
		if (elements[d].checked == true) {
		    referen = elements[d].name.substring(6,elements[d].name.length-2);
		    emaitza += referen + '+';
		}
	    }
	}
    }
    document.formuH.elements['c'].value =  emaitza;
}

function jatorria(zein) {
    var txekea = '_' + zein;
    with (document.corpusFormu) {
	for (var d = 0; d < elements.length; d++) {
	    if (elements[d].name.indexOf('check_',0) != -1) {
	      if (elements[d].name.indexOf(txekea,0) != -1) {
		elements[d].checked = true;
		referen = elements[d].name.substring(4,elements[d].name.length);
	      } else {
		elements[d].checked = false;
              }
            }
	}
    }
    ezarri();
}

function urteak(zein) {
    var txekea = 'check_' + zein;
    with (document.corpusFormu) {
	for (var d = 0; d < elements.length; d++) {
	    if (elements[d].name.indexOf('check_',0) != -1) {
	      if (elements[d].name.indexOf(txekea,0) != -1) {
		elements[d].checked = true;
		referen = elements[d].name.substring(4,elements[d].name.length);
	      } else {
		elements[d].checked = false;
              }
            }
	}
    }
    ezarri();
}

function hautatu() {
    with (document.corpusFormu) {
	for (var d = 0; d < elements.length; d++) {
	    if (elements[d].name.indexOf('check_',0) != -1) {
		elements[d].checked = true;
		referen = elements[d].name.substring(4,elements[d].name.length);
	    }
	}
    }
    ezarri();
}

function garbitu() {
    with (document.corpusFormu) {
	for (var d = 0; d < elements.length; d++) {
	    if (elements[d].name.indexOf('check_',0) != -1) {
		elements[d].checked = false;
		referen = elements[d].name.substring(4,elements[d].name.length);
	    }
	}
    }
    ezarri();
}

function itxi() {
    ezarri();
    window.close();
}