PHP error happened

Technical information
Error type2
Error descriptionmysql_connect() [function.mysql-connect]: Access denied for user 'mrdee'@'localhost' (using password: YES)
URLwww.vlaanderen-flanders.org.uk/elfnegen_list.php?
Error file/home/mrdee/public_html/include/dbconnection.php
Error line9
SQL query