errore:

Microsoft JScript runtime error '800a139c'

Expected ')' in regular expression

/ricercainterna2/ass-engine.asp, line 1055
codice:
	var lreg_newLine			= /[\f\n\r\t]+/g;
	var lreg_spaces				= / {2,}/g;
	var lreg_htmlSpaces			= /(?:)*/gi;
	
	
	//This randomizes the number of characters grabbed for the
	//summary so all of the high lighting doesn't appear in the
	//same place.
	var lobj_Date		= new Date();
	var i				= lobj_Date.getMilliseconds() % 3;
	li_spacingBegining	= lary_spacingBegining[i];
	li_spacingEnd		= lary_spacingEnd[i];
	delete lobj_Date;
	
	//remove any new line characters and anything with more then 2 spaces.
	ls_strippedResults	= arg_s_fileContents.replace( lreg_newLine,'' ).replace( lreg_spaces, '' ) .replace(lreg_htmlSpaces, '' );
	li_searchIndex = ls_strippedResults.search( arg_ary_match[0] );
l'ultima riga é la linea 1054

la faccina é la modifica del carattere &_nbsp;_) senza le underscore

help me