/*!
 * Enhanced attribute selectors for Sizzle/jQuery
 * Version: 1.0.1
 * Copyright (c) 2009 Balazs Endresz (balazs.endresz@gmail.com)
 * Released under the MIT, BSD, and GPL Licenses.
 */
 
(function(Sizzle){

var Expr=Sizzle.selectors;

Expr.attrPrefix = {};

Expr.match.ATTR = /\[\s*(\W*(?:[\w\u00c0-\uFFFF_-]|\.|\\.)+)\s*(?:(\S?[=<>])\s*(['"]*)(.*?)\3|)\s*\](?![^\[]*\])(?![^\(]*\))/;
//inserted:              \W*                      |\.                 [ <>]                         lookahead appended later

Expr.filter.ATTR = function(elem, match){
	
	var name = match[1],
		result,
		value,
		type = match[2],
		check = match[4],
		prefix = name.match(/(^\W+)(.*)/);
	
	if( prefix !== null ){
		for( var i in Expr.attrPrefix )
			if( i === prefix[1] ) {
				result = Expr.attrPrefix[i](elem, prefix[2]);
				break;
			}
	} else
		result = Expr.attrHandle[ name ] ?
			Expr.attrHandle[ name ]( elem ) :
			elem[ name ] != null ?
				elem[ name ] :
				elem.getAttribute( name );

	value = result + "";
	  
	var ret = result == null ?
		type === "!=" :
		type === "=" ?
		value === check :
		type === "*=" ?
		value.indexOf(check) >= 0 :
		type === "~=" ?
		(" " + value + " ").indexOf(check) >= 0 :
		!check ?
		result === 0 || result :
		type === "!=" ?
		value != check :
		type === "^=" ?
		value.indexOf(check) === 0 :
		type === "$=" ?
		value.substr(value.length - check.length) === check :
		type === "|=" ?
		value === check || value.substr(0, check.length + 1) === check + "-" :
		type === "/=" ?
		new RegExp(check).test(value) :
		false;
	
	if( ret || type && type.match(/<|>/) === null ) return ret;
	
	var newValue = parseFloat(value), newCheck = parseFloat(check);
	value = isNaN( newValue ) ? value : newValue;
	check = isNaN( newCheck ) ? check : newCheck;
	
	return type === "<" ? value < check :
		type === ">" ? value > check :
		type === "<=" ? value <= check :
		type === ">=" ? value >= check :
		false;
}

})( (jQuery && jQuery.find) || Sizzle);


(function($){
	//Sizzle.selectors.attrPrefix
	$.extend( $.expr.attrPrefix, {
		'~': function(e, val){ return  $.curCSS(e, val); }
	})

})(jQuery);