Problems passing parmaters in Javascript

I am trying to pass several variables from a php page into a java script. However only the first parameter is being passed.

The php page calls the script like this:

<?
$sdate = 0;
$edate = 2;
?>
<script type="text/javascript">
            window.onload = function() { 
                datagrid = new DatabaseGrid('<? echo $sdate; ?>', '<? echo $edate; ?>');
            }; 
</script><BR>

The Java Script being called is:

function DatabaseGrid(sdate, edate) 
{ 
    this.editableGrid = new EditableGrid("demo", {
        enableSort: true,
        tableLoaded: function() { datagrid.initializeGrid(this); },
        modelChanged: function(rowIndex, columnIndex, oldValue, newValue, row) {
            updateCellValue(this, rowIndex, columnIndex, oldValue, newValue, row);
        }
    });
    this.fetchGrid(sdate);
    this.fetchGrid(edate); 

}

DatabaseGrid.prototype.fetchGrid = function(sdate, edate)  {
    // call a PHP script to get the data
    alert("loaddata_dailyotp.php?o=" + sdate + "&e=" + edate + "");
    this.editableGrid.loadXML("loaddata_dailyotp.php?o=" + sdate + "&e=" + edate + "");
};

DatabaseGrid.prototype.initializeGrid = function(grid) {
    grid.renderGrid("tablecontent", "testgrid");
};  

I added the alert window to show the exactly what was being requested. I was expecting this:

loaddata_dailyotp.php?o=0&e=2

However what I am getting is:

loaddata_dailyotp.php?o=0&e=undefined

Why is my second parameter not going through?

You are not passing the "edate" parameter to your fetchGrid() call. That's why it's displayed as "undefined". For some reason you're calling fetchGrid() two times instead.