Can I change script to load different pages for more than a week?

[thewolfe1]

Can I tweak the script below so that I could change content for 9 days, 14 days, a month, etc?

<script language="JavaScript1.2">

//Daily iframe content- © Dynamic Drive (www.dynamicdrive.com)
//For full source code, and Terms Of use, visit http://dynamicdrive.com
//This credit MUST stay intact for use

var ie=document.all&&navigator.userAgent.indexOf("Opera")==-1
var dom=document.getElementById&&navigator.userAgent.indexOf("Opera")==-1

//Specify IFRAME display attributes
var iframeprops='width=150 height=150 marginwidth="0" marginheight="0" hspace="0" vspace="0" frameborder="1" scrolling="no"'

//Specify 7 URLs to display inside iframe, one for each day of week
var daycontent=new Array()
daycontent[1]="monday.htm" //Monday content
daycontent[2]="tuesday.htm" //Tuesday content
daycontent[3]="wednesday.htm"
daycontent[4]="thursday.htm"
daycontent[5]="friday.htm"
daycontent[6]="saturday.htm"
daycontent[0]="sunday.htm"

//No need to edit after here
if (ie||dom)
document.write('<iframe id="dynstuff" src="" '+iframeprops+'></iframe>')

var mydate=new Date()
var mytoday=mydate.getDay()

function dayofweek_iframe(){
if (ie||dom){
var iframeobj=document.getElementById? document.getElementById("dynstuff") : document.all.dynstuff
iframeobj.src=daycontent[mytoday]
}
}

window.onload=dayofweek_iframe

</script>