jeresig / sizzle

jQuery.find = Sizzle;
jQuery.expr = Sizzle.selectors;
jQuery.expr[":"] = jQuery.expr.filters;
 
Sizzle.selectors.filters.hidden = function(elem){
	var width = elem.offsetWidth, height = elem.offsetHeight,
		 force = /^tr$/i.test( elem.tagName ); // ticket #4512
	return ( width === 0 && height === 0 && !force ) ?
		true :
			( width !== 0 && height !== 0 && !force ) ?
				false :
					!!( jQuery.curCSS(elem, "display") === "none" );
};
 
Sizzle.selectors.filters.visible = function(elem){
	return !Sizzle.selectors.filters.hidden(elem);
};
 
Sizzle.selectors.filters.animated = function(elem){
	return jQuery.grep(jQuery.timers, function(fn){
		return elem === fn.elem;
	}).length;
};
 
jQuery.filter = jQuery.multiFilter = function( expr, elems, not ) {
	if ( not ) {
		expr = ":not(" + expr + ")";
	}
 
	return Sizzle.matches(expr, elems);
};
 
jQuery.dir = function( elem, dir ){
	var matched = [], cur = elem[dir];
	while ( cur && cur != document ) {
		if ( cur.nodeType == 1 )
			matched.push( cur );
		cur = cur[dir];
	}
	return matched;
};
 
jQuery.nth = function(cur, result, dir, elem){
	result = result || 1;
	var num = 0;
 
	for ( ; cur; cur = cur[dir] )
		if ( cur.nodeType == 1 && ++num == result )
			break;
 
	return cur;
};
 
jQuery.sibling = function(n, elem){
	var r = [];
 
	for ( ; n; n = n.nextSibling ) {
		if ( n.nodeType == 1 && n != elem )
			r.push( n );
	}
 
	return r;
};
 
return;