function show_comm(id){
 var txt;
 switch (id){
  case 1: txt='25 Characters Max.& don’t use full CAPITALISATION or excessive puncutuation!!!!!!! as Google doesn’t like it!';
          break;
  case 2: txt='Please type the first line of your description max 35 digits.';
          break;
  case 3: txt='Please type the second line of your description max 35 digits.';
          break;
  case 4: txt='Please type your correct website address max 35 digits.'; 
 }
 document.getElementById('ad_info').innerHTML = txt;
 document.getElementById('ad_info').style.display = 'block';
}

function hide_comm(id){
 document.getElementById('ad_info').style.display = 'none';
}

function change(src,id){
 if (id==1) trunc=25;
 else trunc=35;
 src.value=src.value.substring(0,trunc);
 document.getElementById('opi'+id).innerHTML = src.value;
 if (id==4) document.getElementById('head_link').href = src.value;
}

function open_web(){
 var www = document.getElementById('opi4').innerHTML;
 if (www.substring(0,7)=='http://' || www.substring(0,8)=='https:///') window.open(www);
 else window.open('http://'+www);
 return false;
}