Create a $_POST array with JavaScript (and a table with it)

<script type="text/javascript">
 function loopit(){
  var names=new Array();
  var values=new Array();
  var checkitem=new Array();
  var itemtype=new Array();
  area=document.getElementById('inner');
  for(i=0; i<document.form.length; i++){
    names[i]=document.form.elements[i].name;
    values[i]=document.form.elements[i].value;
    itemtype[i]=document.form.elements[i].type;
    if(document.form.elements[i].checked==true){
        checkitem[i]='checked';
    }
    else{
        checkitem[i]='';
    }
    if(i==0){
      area.innerHTML+='<table><tr><td>'+names[i]+'</td><td>'+values[i]+'</td>
      <td>'+itemtype[i]+'</td><td>'+checkitem[i]+'</td><tr>';
    }
    else if(i==document.form.length-1){
      area.innerHTML+='<tr><td>'+names[i]+'</td><td>'+values[i]+'</td>
      <td>'+itemtype[i]+'</td><td>'+checkitem[i]+'</td><tr></table>';
    }
    else{
      area.innerHTML+='<tr><td>'+names[i]+'</td><td>'+values[i]+'</td>
      <td>'+itemtype[i]+'</td><td>'+checkitem[i]+'</td><tr>';
    }
  }
 }
</script>
<div id="inner">table will go here</div>