function lineover(lineid)
  {
  	document.getElementById(9999991).innerHTML = document.getElementById(lineid).besitzer_name;
  	document.getElementById(9999992).innerHTML = document.getElementById(lineid).tech_name + " (" + document.getElementById(lineid).pos_y + ":" + document.getElementById(lineid).pos_x + ")";
  	document.getElementById(9999993).innerHTML = document.getElementById(lineid).wert + " Credits";
  	
  }
function lineout(lineid)
  {
    document.getElementById(9999991).innerHTML = "";	
    document.getElementById(9999992).innerHTML = "";
    document.getElementById(9999993).innerHTML = "";
  }

<td 
          onClick="javascript:geb_aktionen(<?php echo $row_platz[platz_id] ?>,<?php echo $row_platz[tech_id] ?>,<?php echo $row_platz[user_id]; ?>);"
          onmouseover="lineover(<?php echo $row_platz[platz_id] ?>)" 
          onmouseout="lineout(<?php echo $row_platz[platz_id] ?>)" 
          id="<?php echo $row_platz[platz_id] ?>" 
          besitzer_id="<?php echo $row_platz[user_id] ?>" 
          besitzer_name="<?php echo $besitzer ?>" 
          tech_id="<?php echo $row_platz[tech_id] ?>" 
          tech_name="<?php echo $tech_name ?>"
          pos_x="<?php echo $row_platz[pos_x]; ?>" 
          pos_y="<?php echo $row_platz[pos_y]; ?>" 
          wert ="<?php echo $row_platz[wert]; ?>"
          bgcolor="<?php echo $tech_bild ?>" 
          width="15" 
          height="14" 
          border="1"></td>