if(typeof(migo_captcha_randomnumber)=="undefined"){var migo_captcha_randomnumber=Math.floor(Math.random()*10000000000)}

// in_array Function
Array.prototype.contains = function (elem) {
  var i;
  for (i = 0; i < this.length; i++) {
    if (this[i] == elem) {
      return true;
    }
  }

  return false;
};
/*
var b = new Array (1, 2, 4);
alert (b.contains (1));
alert (b.contains (2));
alert (b.contains (3));
alert (b.contains (4));
*/

String.prototype.strreplace = function(pattern, replacement) {
  return this.split(pattern).join(replacement);
}

function scroll_down() {
  //window.scrollTo(1,5000);
  if (document.body.offsetHeight) {
     window.scrollTo(0, document.body.offsetHeight);
  } else if (document.body.scrollHeight) {
     window.scrollTo(0, document.body.scrollHeight);
  } else if(document.documentElement.clientHeight) {
     window.scrollTo(0, document.documentElement.clientHeight);
  }

}

var checkflag = "false";
function check_all(field) {

	if (checkflag == "false") {
			for (i = 0; i < field.length; i++) {
				field[i].checked = true;
			}
		checkflag = "true";
	} else {
			for (i = 0; i < field.length; i++) {
				field[i].checked = false; 
			}
		checkflag = "false";
	}
}

function trim(s) {
  while (s.substring(0,1) == ' ') {
    s = s.substring(1,s.length);
  }
  while (s.substring(s.length-1,s.length) == ' ') {
    s = s.substring(0,s.length-1);
  }
  return s;
}



function send_guestbook_form() {
	var error = false;
	
	if (trim($("name").value) == "") {
		alert('Sie müssen Ihren "Namen" angeben.');
		error = true;
	} else if (trim($("email").value) == "") {
    alert('Sie müssen Ihre "E-Mail-Adresse" angeben.');
    error = true;
  } else if (trim($("herkunft").value) == "") {
    alert('Sie müssen Ihre "Herkunft" angeben.');
    error = true;
  } else if (trim($("comment").value) == "") {
    alert('Sie müssen einen "Kommentar" angeben.');
    error = true;
  } 
  if ($("code_id") && error==false) {
	  if (trim($("code_id").value) == "") {
	    alert('Sie müssen den "Sicherheitscode" ablesen und in das Feld eintragen.');
	    error = true;
	  }
  }
  
  
	if (error == false) {
		$("submit_b").disabled=true;
		$("submit_b").value='Bitte warten';

		$("form1").submit();
	}
}