You need to use javascript to do this.
On your product layout(s) look for:
Create a new line before '/block' and add the following javascript code:
<script language="javascript" type="text/javascript">
var date = new Date();
date.setDate( date.getDate() + 7 );
var year = date.getFullYear();
var month = date.getMonth();
var day = date.getDate();
document.getElementsByName('Y_<Actinic:Variable Name="ProductID"/>')[0].selectedIndex = year - <actinic:variable name="MinYearValue" />;
document.getElementsByName('M_<Actinic:Variable Name="ProductID"/>')[0].selectedIndex = month;
document.getElementsByName('DAY_<Actinic:Variable Name="ProductID"/>')[0].selectedIndex = day-1;
</script>
Click 'Apply' and update your site.
If you want to make the date longer (ie a week from today's date) then change '+ 1' to the number of days you want in the future.
On your product layout(s) look for:
Create a new line before '/block' and add the following javascript code:
<script language="javascript" type="text/javascript">
var date = new Date();
date.setDate( date.getDate() + 7 );
var year = date.getFullYear();
var month = date.getMonth();
var day = date.getDate();
document.getElementsByName('Y_<Actinic:Variable Name="ProductID"/>')[0].selectedIndex = year - <actinic:variable name="MinYearValue" />;
document.getElementsByName('M_<Actinic:Variable Name="ProductID"/>')[0].selectedIndex = month;
document.getElementsByName('DAY_<Actinic:Variable Name="ProductID"/>')[0].selectedIndex = day-1;
</script>
Click 'Apply' and update your site.
If you want to make the date longer (ie a week from today's date) then change '+ 1' to the number of days you want in the future.