json array

<script language="JavaScript" type="text/JavaScript">

 function test() {
  
  var imgInfo = [{kind:'1', num:'1ccc'},
   {kind:'2', num:'2ccc'},
   {kind:'3', num:'3ccc'},
   {kind:'4', num:'4ccc'}];
  
  alert(imgInfo[1].kind +'/'+ imgInfo[3].num);
 }
 
</script>