How to find no of checkboxes using javascript?

To find no of checkboxes in html using jQuery or javascript

var inputs = document.getElementsByTagName("input"); //or document.forms[0].elements;  
var cbs = []; //will contain all checkboxes  
var checked = []; //will contain all checked checkboxes  
for (var i = 0; i < inputs.length; i++) {  
  if (inputs[i].type == "checkbox") {  
    cbs.push(inputs[i]);  
    if (inputs[i].checked) {  
      checked.push(inputs[i]);  
    }  
  }  
}  
var nbCbs = cbs.length; //number of checkboxes  
var nbChecked = checked.length; //number of checked checkboxes 

The following code gives no of check boxes present and no of checked.

Using the above code I have written following code

 cricket
 football
 hockey
 chess
 cards