How to Put Randomly Rotating Ads on your Sidebar in Blogger

Have you ever wanted to randomly rotate your sponsor’s advertisements on every page refresh? I have finally figured this one out for you!! It is pretty simple too. What is even better, is that it works with any size advertisement! To see it live, click on the image below.

Step #1: Plan for how you want your ads to display… This code will fall one ad after the other, so if you want to display 2 columns of ads, make your sidebar wide enough for 2 ads + a little extra room for the small space in between the ads. If you want them to display 1 after the other, then your sidebar just needs to be a little wider than one ad.

Step #2: Paste the Code below into an HTML/JavaScript Gadget on your Sidebar:

<script language="Javascript" type="text/JavaScript">

var ad = new Array()
ad[0]='<a href="YOUR WEBSITE URL HERE" target="_blank"><img src="YOUR IMAGE URL HERE" border="0"></a>'
ad[1]='<a href="YOUR WEBSITE URL HERE" target="_blank"><img src="YOUR IMAGE URL HERE" border="0"></a>'
ad[2]='<a href="YOUR WEBSITE URL HERE" target="_blank"><img src="YOUR IMAGE URL HERE" border="0"></a>'
ad[3]='<a href="YOUR WEBSITE URL HERE" target="_blank"><img src="YOUR IMAGE URL HERE" border="0"></a>'
ad[4]='<a href="YOUR WEBSITE URL HERE" target="_blank"><img src="YOUR IMAGE URL HERE" border="0"></a>'
ad[5]='<a href="YOUR WEBSITE URL HERE" target="_blank"><img src="YOUR IMAGE URL HERE" border="0"></a>'

function randomorder(targetarray, spacing){

var randomorder=new Array()
var the_one
var z=0
for (i=0;i<targetarray.length;i++)
randomorder[i]=i

while (z<targetarray.length){
the_one=Math.floor(Math.random()*targetarray.length)
if (targetarray[the_one]!="_selected!"){
document.write(targetarray[the_one]+spacing)
targetarray[the_one]="_selected!"
z++
}
}
}

</script>

<script language="Javascript" type="text/javascript" ></script>
<script>
randomorder(ad, ' ')
</script>

Step #3: Now, you just need to add your Image URLs and Website URLs. (If you need to know where to get your image URL, I have a post here that explains Hosting Images)

If you need to display more or less advertisements, then copy the the Ad[#]…….</a>’ Section and repeat the pattern, or delete the same section(s) leaving as many ads as you need. Make sure that if you add additional ads, that you change the # in the [ ]s to be the next number.

IMPORTANT: The code needs to be exact, if it is not working correctly, check and recheck the code and make sure that no quote marks are missing, etc.

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