Friends Can any one please help me out i want to show n places(where n=2,3,4,5...) on a google map in which each marker should have infowindow with data which is retrived from data base using xml file

I have data in database,..i retrived it through php code and stored it in mm.xml file..this xml file will automatically generating when i opened that php file(text.php).

i am able to show that data(place,latitude and longitude which is retrived from database) on the google map but  THE PROBLEM IS I am not able to display more than one marker with info window at a time

pleaseeee help me out any one.

Thanks in advance..