Kalender fra søndag i stedet fra mandag

Jeg har en java kalender som løber fra søndag til lørdag. Ville gerne ha' den til at løbe fra mandag til søndag. Har selv prøvet forgæves.

en basiccalendar.js der ser ud sådan:

function buildCal(m, y, cM, cH, cDW, cD, brdr){
var mn=['Januar','Februar','Marts','April','Maj','Juni','Juli','August','September','Oktober','November','December'];
var dim=[31,0,31,30,31,30,31,31,30,31,30,31];

var oD = new Date(y, m-1, 1); //DD replaced line to fix date bug when current day is 31st
oD.od=oD.getDay()+1; //DD replaced line to fix date bug when current day is 31st

var todaydate=new Date() //DD added
var scanfortoday=(y==todaydate.getFullYear() && m==todaydate.getMonth()+1)? todaydate.getDate() : 0 //DD added

dim[1]=(((oD.getFullYear()%100!=0)&&(oD.getFullYear()%4==0))||(oD.getFullYear()%400==0))?29:28;
var t='<div class="'+cM+'"><table class="'+cM+'" cols="7" cellpadding="0" border="'+brdr+'" cellspacing="0"><tr align="center">';
t+='<td colspan="7" align="center" class="'+cH+'">'+mn[m-1]+' - '+y+'</td></tr><tr align="center">';
for(s=0;s<7;s++)t+='<td class="'+cDW+'">'+"SMTOTFL".substr(s,1)+'</td>';
t+='</tr><tr align="center">';
for(i=1;i<=42;i++){
var x=((i-oD.od>=0)&&(i-oD.od<dim[m-1]))? i-oD.od+1 : '&nbsp;';
if (x==scanfortoday) //DD added
x='<span id="today">'+x+'</span>' //DD added
t+='<td class="'+cD+'">'+x+'</td>';
if(((i)%7==0)&&(i<36))t+='</tr><tr align="center">';
}
return t+='</tr></table></div>';
}
I HEAD dette

<style type="text/css">

.main {
width:200px;
border:1px solid black;
}

.month {
background-color:black;
font:bold 12px verdana;
color:white;
}

.daysofweek {
background-color:gray;
font:bold 12px verdana;
color:white;
}

.days {
font-size: 12px;
font-family:verdana;
color:black;
background-color: lightyellow;
padding: 2px;
}

.days #today{
font-weight: bold;
color: red;
}

</style>


<script type="text/javascript" src="basiccalendar.js">
</script>


I BODY dette

<script type="text/javascript">

var todaydate=new Date()
var curmonth=todaydate.getMonth()+1 //get current month (1-12)
var curyear=todaydate.getFullYear() //get current year

document.write(buildCal(curmonth ,curyear, "main", "month", "daysofweek", "days", 1));
</script>