Ajax :: Variables In An App Do Not Match?

I'm working on an AJAX calendar. Visitors can select a date, fill out a form to request a meeting, and click submit. Here's what's crazy. My calendar has two parts: the top part displays the meetings for each day as well as the form and the bottom part displays the actual calendar. When you click submit, the top part update correctly, but using the same variable, the bottom part is incorrect. After doing some debugging I found that the variable for some reason changes between the php and javascript.

The rest of the code is unimportant because it does not pertain to my question. I have a callback function (show_cal) that uses eval() to parse the javascript built on the server. The getEvents function works without a hitch. The getCalendatMonth does not and here's why: in the php, the echo "alert(\"" . $date . "\");"; shows the correct response (2009-28-09) however the alert(date); in my Javascript only returns a random year (1975, 1976, 2000). Does anyone have any suggestions about why the two alerts would be different?

Here's the code.

java script:

function getCalendarMonth(date)
{
if(http.readyState ==4)
{

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