var id = 'preview';	    

function previewMessage()
{
  var pre = 'display-';
  var id1 = pre + 'residence';	    
  var id2 = pre + 'message';	    
  var id3 = pre + 'submitter';	    
  var id4 = pre + 'subdate';   
  var id6 = 'message';	    
  var id7 = 'submitter';	
  var nodeObj = document.getElementById(id);  
  var nodeObj2 = document.getElementById(id2);  
  var nodeObj3 = document.getElementById(id3);  
  var nodeObj6 = document.getElementById(id6);  
  var nodeObj7 = document.getElementById(id7);  
  var op = nodeObj6.value;
  var cl = nodeObj7.value;
  nodeObj2.firstChild.nodeValue = op;
  nodeObj3.firstChild.nodeValue = cl;
  writeDate(id4);
  nodeObj.style.visibility = 'visible';
}

function closePreview()
{ 
  var nodeObj = document.getElementById(id);  
  nodeObj.style.visibility = 'hidden';
}