Get document width : document « jQuery « JavaScript Tutorial

<html>
  <head>
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){
        
               
                alert( $(document).width());
               


        });
    </script>
<style>

  div { width:50px; height:70px; float:left; margin:5px;
        background:rgb(255,140,0); cursor:pointer; }
  
</style>
  </head>
  <body>
    <body>
          <div></div>
          <div></div>
                 
    </body>
</html>

30.31.document
	30.31.1.	Sets the background color of the page to black
	30.31.2.	Get document width
	30.31.3.	Document height
	30.31.4.	Get elements in body tags
	30.31.5.	Reference document.body