function generer_pop_up(form) 
{
  form.popup_gen.value = "<a href=\"" + form.input1.value + "\" onclick=\"window.open('','popup','";
  if (form.input2.value != "") form.popup_gen.value += "height=" + form.input2.value + ",";
  if (form.input3.value != "") form.popup_gen.value += "width="  + form.input3.value + ",";
  if (form.input4.value != "") form.popup_gen.value += "left="   + form.input4.value + ",";
  if (form.input5.value != "") form.popup_gen.value += "top="    + form.input5.value + ",";
  if (form.checkbox1.checked) form.popup_gen.value += "menubar=1,";
  else form.popup_gen.value += "menubar=0,";
  if (form.checkbox2.checked) form.popup_gen.value += "toolbar=1,";
  else form.popup_gen.value += "toolbar=0,";
  if (form.checkbox3.checked) form.popup_gen.value += "location=1,";
  else form.popup_gen.value += "location=0,";
  if (form.checkbox4.checked) form.popup_gen.value += "status=1,";
  else form.popup_gen.value += "status=0,";
  if (form.checkbox5.checked) form.popup_gen.value += "scrollbars=1,";
  else form.popup_gen.value += "scrollbars=0,";
  if (form.checkbox6.checked) form.popup_gen.value += "directories=1,";
  else form.popup_gen.value += "directories=0,";
  if (form.checkbox7.checked) form.popup_gen.value += "resizable=1,";
  else form.popup_gen.value += "resizable=0,";
  if (form.checkbox8.checked) form.popup_gen.value += "copyhistory=1,";
  else form.popup_gen.value += "copyhistory=0,";
  form.popup_gen.value += "')\" target=\"popup\">" + form.input0.value + "</a>";
}