while (prop = arguments[a++]) 
while ( (prop = arguments[a++]) != null ) 
jQuery.extend = jQuery.fn.extend = function() {	// copy reference to target object	var target = arguments[0],		a = 1;	// extend jQuery itself if only one argument is passed	if ( arguments.length == 1 ) {		target = this;		a = 0;	}	var prop;	while (prop = arguments[a++])		// Extend the base object		for ( var i in prop ) target[i] = prop[i];	// Return the modified object	return target;};
10252	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10252/f29aa679d26dfc4f883868d041c506eaee4b6064/jquery.js/clean/static/scripts/jquery.js