Hi,
I am having the following issue, which may be a combination of Firefox and OSX:
When I click on any of the date fields in the calendar, I cannot get the field to be input into a text area. However, when I hit the ">" arrows, the date does enter as the first day of the next month. Hitting the date field generates "Too Much Recursion" on line 1802 from Firefox, which is the following chunk of code:

Date.prototype.__msh_oldSetFullYear = Date.prototype.setFullYear;
Date.prototype.setFullYear = function(y) {
var d = new Date(this);
d.__msh_oldSetFullYear(y); //<------------------------ Line 1802
if (d.getMonth() != this.getMonth())
this.setDate(28);
this.__msh_oldSetFullYear(y);
};

The calendar is called via a text field with a button event trigger in the following way:

$return = '<input type="text" name="' . $oName .'" id="' . $oName . '" />';

$return .= '<img src="calendar.png" id="trigger_i" alt="+" />' ;

$return .= "<script type=\"text/javascript\">\n"
. "Calendar.setup({"
. 'inputField : "'.$oName.'",' // id of the input field
. 'ifFormat : "'.$this->dateFormat.'",' // format of the input field
. 'button : "trigger_i",' // button to trigger the even.
.'showsTime : false,' // will display a time selector
. 'singleClick: true' // single-click mode
. "});\n"
. "</script>\n";

Any help is appreciated, thanks ilya