if(document.images)
{
  mn_therapieverbund_on = new Image;
  mn_therapieverbund_on.src = 'fileadmin/templates/img/mn_therapieverbund_on.gif';
  mn_therapieverbund_off = new Image;
  mn_therapieverbund_off.src = 'fileadmin/templates/img/mn_therapieverbund_off.gif';

  mn_therapiezentrum_on = new Image;
  mn_therapiezentrum_on.src = 'fileadmin/templates/img/mn_therapiezentrum_on.gif';
  mn_therapiezentrum_off = new Image;
  mn_therapiezentrum_off.src = 'fileadmin/templates/img/mn_therapiezentrum_off.gif';

  mn_suchttherapie_on = new Image;
  mn_suchttherapie_on.src = 'fileadmin/templates/img/mn_suchttherapie_on.gif';
  mn_suchttherapie_off = new Image;
  mn_suchttherapie_off.src = 'fileadmin/templates/img/mn_suchttherapie_off.gif';

  mn_nachsorge_on = new Image;
  mn_nachsorge_on.src = 'fileadmin/templates/img/mn_nachsorge_on.gif';
  mn_nachsorge_off = new Image;
  mn_nachsorge_off.src = 'fileadmin/templates/img/mn_nachsorge_off.gif';
}

function imgAct(img_name)
{
  if(document.images) {
    img_on = eval(img_name + '_on.src');
	  document.getElementById(img_name).src = img_on;
  }
}

function imgInact(img_name)
{
  if(document.images) {
    img_off = eval(img_name + '_off.src');
    document.getElementById(img_name).src = img_off;
  }
}

function setEmpty(content, field)
{
    if(document.getElementById(field).value == content)
    {
        document.getElementById(field).value = "";
    }
}

function setValue(content, field)
{
    if(document.getElementById(field).value == "")
    {
    document.getElementById(field).value = content;
    }
}