function validate(field,alerttxt)
{
  with (field)
  {
    if (value==null||value=="") {
      alert(alerttxt);
      return false;
    } else {
      return true
    }
    }
}

function validate_two(field1,field2,alerttxt)
{
  if (field1.value!=null&&field1.value!=""&&field2.value!=null&&field2.value!=""&&field1.value==field2.value) {
    return true
  } else {
    alert(alerttxt);
    return false;
  }
}

function validate_email(field,alerttxt)
{
  with (field)
  {
    retval = agent.call('Modules/Basic/jsinc.php','checkmail','',value);
    if (retval == true) {
      return true;
    } else {
      alert(value+" "+alerttxt);
      return false;
    }
    }
}

function getSelectedValue(oplist)
{
  for (i = 0; i < oplist.length; ++i)
  {
    if (oplist.options[i].selected == true)
    {
      return oplist.options[i].value;
    }
  }

  return null;
}

function dheight() {
  //  var t1=(document.getElementById('hauptseite').offsetHeight)+"px";
  //  document.getElementById('sidebar').style.height=(t1);

  var minheight = 650;
  var height = $("div[id='hauptseite']").outerHeight();

  if (height < minheight) {
    $("div[id='sidebar']").css("height", minheight);
  } else {
    $("div[id='sidebar']").css("height", height);
  }
}

function setAddContent()
{
  var from = document.getElementById("BeamMeToAddContent");

  if(from != null) {
    tocss = document.getElementById("addcontentcss");
    to = document.getElementById("addcontent");

    tocss.style.display = "block";
    to.innerHTML = from.innerHTML;

    from.innerHTML = null;
    from.style.display = "none";
  } else {

    tocss = document.getElementById("addcontentcss");
    tocss.style.display = "none";
  }
}

function loadjscssfile(filename, filetype){
  if (filetype=="js"){ //if filename is a external JavaScript file
    var fileref=document.createElement('script')
    fileref.setAttribute("type","text/javascript")
    fileref.setAttribute("src", filename)
  }
  else if (filetype=="css"){ //if filename is an external CSS file
    var fileref=document.createElement("link")
    fileref.setAttribute("rel", "stylesheet")
    fileref.setAttribute("type", "text/css")
    fileref.setAttribute("href", filename)
  }
  if (typeof fileref!="undefined")
    document.getElementsByTagName("head")[0].appendChild(fileref)
}

function pausecomp(millis)
{
  var date = new Date();
  var curDate = null;

  do {
    curDate = new Date();
  }
  while(curDate-date < millis);
}