var arrRandomImages = new Array();
   var intNumber = 0;  
   
   arrRandomImages[intNumber++] = "<img src='/internet/_Images/Internet/header_img1.jpg' />"    
   arrRandomImages[intNumber++] = "<img src='/internet/_Images/Internet/header_img2.jpg' />" 
   arrRandomImages[intNumber++] = "<img src='/internet/_Images/Internet/header_img3.jpg' />" 
   arrRandomImages[intNumber++] = "<img src='/internet/_Images/Internet/header_img4.jpg' />" 
   arrRandomImages[intNumber++] = "<img src='/internet/_Images/Internet/header_img5.jpg' />" 
   arrRandomImages[intNumber++] = "<img src='/internet/_Images/Internet/header_img6.jpg' />"    
   arrRandomImages[intNumber++] = "<img src='/internet/_Images/Internet/header_img7.jpg' />" 
   arrRandomImages[intNumber++] = "<img src='/internet/_Images/Internet/header_img8.jpg' />" 
   arrRandomImages[intNumber++] = "<img src='/internet/_Images/Internet/header_img9.jpg' />" 
   arrRandomImages[intNumber++] = "<img src='/internet/_Images/Internet/header_img10.jpg' />"
   arrRandomImages[intNumber++] = "<img src='/internet/_Images/Internet/header_img11.jpg' />" 
   arrRandomImages[intNumber++] = "<img src='/internet/_Images/Internet/header_img12.jpg' />" 
   arrRandomImages[intNumber++] = "<img src='/internet/_Images/Internet/header_img13.jpg' />"
   var intIncrement = Math.floor(Math.random() * intNumber);