jquery.cpf-validate.1.0.min.js

(function ( $ ) {

	$.fn.validateCPF = function(a) {
		var b = this;
		var c = b.val().replace('.', '').replace('.', '').replace('-', '');
		if (c.length != 11) {
			return false;
		} else {
			var d = /1{11}|2{11}|3{11}|4{11}|5{11}|6{11}|7{11}|8{11}|9{11}|0{11}/;
			if (d.test(c)) {
				return false;
			} else {
				var x = 0;
				var y = 0;
				var e = 0;
				var f = 0;
				var g = 0;
				var h = "";
				var k = "";
				var l = c.length;
				x = l - 1;
				for ( var i = 0; i <= l - 3; i++) {
					y = c.substring(i, i + 1);
					e = e + (y * x);
					x = x - 1;
					h = h + y;
				}
				f = 11 - (e % 11);
				
				if (f == 10 || f == 11) {
					f = 0;
				}

				k = c.substring(0, l - 2) + f;
				x = 11;
				e = 0;
				for ( var j = 0; j <= (l - 2); j++) {
					e = e + (k.substring(j, j + 1) * x);
					x = x - 1;
				}
				g = 11 - (e % 11);
				if (g == 10) {
					g = 0;
				}
				if (g == 11) {
					g = 0;
				}
				if ((f + "" + g) == c.substring(l, l - 2)) {
					return true;
				} else {
					return false;
				}
			}
		}
	};
}( jQuery ));