Problemas con un prelouder

256 levels of recursion were exceeded in one action list.
This is probably an infinite loop.
Further execution of actions has been disabled in this movie.

Código :

this.onEnterFrame = function() { 
_parent.bgIma_mc.percent = (_parent.bgIma_mc.getBytesLoaded()/_parent.bgIma_mc.getBytesTotal())*100; 
if (!isNan(_parent.bgIma_mc.percent)) { 
texto_txt.text = Math.round(_parent.bgIma_mc.percent)+" %"; 
} 
// imagen cargada 

if (_parent.bgIma_mc.percent >= 100) { 
texto_txt.text = ""; 
delete this.onEnterFrame(); 
} 
};