Problem in media controller

hi,

  I am using media controller along with media display..

and also on the selection of the combobox item the particular flv file play and when the current file is playing at that time the combobox is disabled..

On pause the combobox enabled. and then u can select new flv file to play in the media components…

but the problem i face is when the new flv file after selecting the combobox start playing at that time in the media controller it shows play button instead of pause button...

also i tried with the syntax…

mediacontrollerinstance.activePlayControl=“pause”;

but it doesn’t work…

so can anyone help me please…

Please rply as soon as possible

Thanks in advance