Can we change the Y axis label of a qlikview chart

Hi Experts,

 

Please find the attachment.

Could you suggest me a way to display the word blank in X axis.

Here the condition is ,if the month completed date is 1/1/1900 12:00:00 AM then we have to display the word blank instead of the date in the X axis.

 

Thanks & Regards,

Sandhu Mol