/**
 * @projectDescription 	asolib.js / a tiny lightweight javascript library
 * @author		Amin Ladhani / amin@as-o.ch / 2010
 * @version		0.2
 * certaines methodes de cette librairie sont reprises 
 * ou inspirees des travaux de Brian Kirchoff, de Robert Penner
 * et de diverses methodes utilisees dans la librairie Mootools
 * 
 * L'utilisation de cette librairie requiert l'autorisation de expresse l'auteur
 */
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if(this[i]==needle)
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