Head banner image changing on reload for Blogger Blog

Today i am saying about an interesting thing .Head banner changing trick for blogger
This is a simple blogger hack.when you add this, your blogger blog's header image will change after RELOAD the webpage on your browser.
 Follow the instructions :)

• Sign In to your blogger account.
• Go to Template->Edit HTML
• Find ]]></b:skin> and paste the following code before it.

#header {
background: url("your header image url in quotes") no-repeat left bottom;
margin:0;
padding:2px;
}

• Then copy the below script  and place above the </head> tag:

<script type="text/javascript">
var banner= new Array();

banner[0]="1st image url";
banner[1]="2nd image url";
banner[2]="3rd image url";
banner[3]="4th image url";
banner[4]="5th image url";
var random=Math.round(4*Math.random());

document.write("<style>");
document.write("#header {");
document.write(' background:url("' + banner[random] + '") no-repeat left TOP;');
document.write(" }");
document.write("</style>");
</script>

you are done...:)
If any problem with this blogger trick please leave comment,don't hesitate to ask,we are happy to help you:)