var dataTable;
         google.load("visualization", "1");
      // Set callback to run when API is loaded
      google.setOnLoadCallback(drawVisualization); 
   //   var col1;// = new example.MyTable(document.getElementById('links'));
   
      // Called when the Visualization API is loaded.
      function drawVisualization() {
    
    	    dataTable = new google.visualization.DataTable();
    	           initialize();
		
			    	
          }
      function initialize() {
    	  // Replace the data source URL on next line with your data source URL.
    	  var query = new google.visualization.Query('http://spreadsheets.google.com/pub?key='+key+'&single=true&gid=0');
    	  
    	  // Optional request to return only column C and the sum of column B, grouped by C members.
    	  query.setQuery('select A,B,C,D,E');
    	  
    	  // Send the query with a callback function.
    	  query.send(handleQueryResponse);
    	}
 
   	function handleQueryResponse(response) {
  	  // Called when the query response is returned.
  		 if (response.isError()) {
  			    alert('Error in query: ' + response.getMessage() + ' ' + response.getDetailedMessage());
  			    return;
  			  }
			  var data = response.getDataTable();
			     // Create and populate a data table.
			     
            drawVis(data);
		}