PHP Delete Confirmation Message

Question

Hello,

I am working on the page that will display a button for delete. Here I want some help from Javascript.

If that delete button is pressed, a message box should appear asking if the user is sure to delete the record. If the user presses Yes then the delete.php is working . If the user presses No then the user should stay in the same page.

How can I do this job? I know that it might be a simple job but I suck in JS.

I tried some codes obtained but failed to

Thanks in advance

here my code delete.php

    Checkbox code: 
<input name='checkbox[]' type='checkbox' id='checkbox[]' value=\"".$row['id']."\"> 

Browser output: 
<input name='checkbox[]' type='checkbox' id='checkbox[]' value="392"> 

Button at the bottom of form: 
<input name='delete' type='submit' id='delete' value='Delete Multiple Selected Items'> 

if($delete){ 
//for($i=0;$i<$count;$i++){ 
 $delete = $_REQUEST['delete']; 
 $checkbox = $_REQUEST['checkbox']; 
 $count = count($_REQUEST['checkbox']); 
$del_id = $checkbox[$i]; 
$sql = "DELETE FROM $tbl_name WHERE id='$del_id'"; 
$result = mysql_query($sql); 
} 

// if successful refresh page 
if($result){ 
echo "<meta http-equiv=\"refresh\" content=\"0;URL=checkbox.php\">"; 
} 
mysql_close();