function str_replace (search, replace, subject, count) {
	// Replaces all occurrences of search in haystack with replace
	//
	// version: 1004.2314
	// discuss at: http://phpjs.org/functions/str_replace
	// +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
	// +   improved by: Gabriel Paderni
	// +   improved by: Philip Peterson
	// +   improved by: Simon Willison (http://simonwillison.net)
	// +    revised by: Jonas Raoni Soares Silva (http://www.jsfromhell.com)
	// +   bugfixed by: Anton Ongson
	// +      input by: Onno Marsman
	// +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
	// +    tweaked by: Onno Marsman
	// +      input by: Brett Zamir (http://brett-zamir.me)
	// +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
	// +   input by: Oleg Eremeev
	// +   improved by: Brett Zamir (http://brett-zamir.me)
	// +   bugfixed by: Oleg Eremeev
	// %          note 1: The count parameter must be passed as a string in order
	// %          note 1:  to find a global variable in which the result will be given
	// *     example 1: str_replace(' ', '.', 'Kevin van Zonneveld');
	// *     returns 1: 'Kevin.van.Zonneveld'
	// *     example 2: str_replace(['{name}', 'l'], ['hello', 'm'], '{name}, lars');
	// *     returns 2: 'hemmo, mars'
	var i = 0, j = 0, temp = '', repl = '', sl = 0, fl = 0,
	f = [].concat(search),
	r = [].concat(replace),
	s = subject,
	ra = r instanceof Array, sa = s instanceof Array;
	s = [].concat(s);
	if (count) {
		this.window[count] = 0;
	}

	for (i=0, sl=s.length; i < sl; i++) {
		if (s[i] === '') {
			continue;
		}
		for (j=0, fl=f.length; j < fl; j++) {
			temp = s[i]+'';
			repl = ra ? (r[j] !== undefined ? r[j] : '') : r[0];
			s[i] = (temp).split(f[j]).join(repl);
			if (count && s[i] !== temp) {
				this.window[count] += (temp.length-s[i].length)/f[j].length;}
		}
	}
	return sa ? s : s[0];
}

function number_format(number, decimals, dec_point, thousands_sep) {
	// Formats a number with grouped thousands
	//
	// version: 1004.2314
	// discuss at: http://phpjs.org/functions/number_format
	// +   original by: Jonas Raoni Soares Silva (http://www.jsfromhell.com)
	// +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
	// +     bugfix by: Michael White (http://getsprink.com)
	// +     bugfix by: Benjamin Lupton
	// +     bugfix by: Allan Jensen (http://www.winternet.no)
	// +    revised by: Jonas Raoni Soares Silva (http://www.jsfromhell.com)
	// +     bugfix by: Howard Yeend
	// +    revised by: Luke Smith (http://lucassmith.name)
	// +     bugfix by: Diogo Resende
	// +     bugfix by: Rival
	// +      input by: Kheang Hok Chin (http://www.distantia.ca/)
	// +   improved by: davook
	// +   improved by: Brett Zamir (http://brett-zamir.me)
	// +      input by: Jay Klehr
	// +   improved by: Brett Zamir (http://brett-zamir.me)
	// +      input by: Amir Habibi (http://www.residence-mixte.com/)
	// +     bugfix by: Brett Zamir (http://brett-zamir.me)
	// +   improved by: Theriault
	// *     example 1: number_format(1234.56);
	// *     returns 1: '1,235'
	// *     example 2: number_format(1234.56, 2, ',', ' ');
	// *     returns 2: '1 234,56'
	// *     example 3: number_format(1234.5678, 2, '.', '');
	// *     returns 3: '1234.57'
	// *     example 4: number_format(67, 2, ',', '.');
	// *     returns 4: '67,00'
	// *     example 5: number_format(1000);
	// *     returns 5: '1,000'
	// *     example 6: number_format(67.311, 2);
	// *     returns 6: '67.31'
	// *     example 7: number_format(1000.55, 1);
	// *     returns 7: '1,000.6'
	// *     example 8: number_format(67000, 5, ',', '.');
	// *     returns 8: '67.000,00000'
	// *     example 9: number_format(0.9, 0);
	// *     returns 9: '1'
	// *    example 10: number_format('1.20', 2);
	// *    returns 10: '1.20'
	// *    example 11: number_format('1.20', 4);
	// *    returns 11: '1.2000'
	// *    example 12: number_format('1.2000', 3);
	// *    returns 12: '1.200'
	var n = !isFinite(+number) ? 0 : +number,
	prec = !isFinite(+decimals) ? 0 : Math.abs(decimals),
	sep = (typeof thousands_sep === 'undefined') ? ',' : thousands_sep,
	dec = (typeof dec_point === 'undefined') ? '.' : dec_point,
	s = '',
	toFixedFix = function (n, prec) {
		var k = Math.pow(10, prec);
		return '' + Math.round(n * k) / k;
	};
	// Fix for IE parseFloat(0.55).toFixed(0) = 0;
	s = (prec ? toFixedFix(n, prec) : '' + Math.round(n)).split('.');
	if (s[0].length > 3) {
		s[0] = s[0].replace(/\B(?=(?:\d{3})+(?!\d))/g, sep);
	}
	if ((s[1] || '').length < prec) {
		s[1] = s[1] || '';
		s[1] += new Array(prec - s[1].length + 1).join('0');
	}
	return s.join(dec);
}