${requestName} where is this variable set

[sharad bhushan]

hi all,
 
 i,ve got prblem when using editcontactmech.ftl there is variable name requestName retrived in this ftl.i've looked in editcontactmech.bsh an action that gets executed when this file is rendered...
 
 can any one tell me where this variable is being set.....
 
 thanks all
 
 
 
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