function () {
	var s4 = function () {
		return Math.floor((1 + Math.random()) * 0x10000)
		.toString(16)
		.substring(1);
	};
	return s4() + s4() + '-' + s4();
}
function () {
	var s4 = function () {
		return Math.floor((1 + Math.random()) * 0x10000)
		.toString(16)
		.substring(1);
	};
	return s4() + s4() + '-' + s4();
}
function ( ) { var s4 = function ( ) { return Math . floor ( ( 1 + Math . random ( ) ) * 0x10000 ) . toString ( 16 ) . substring ( 1 ) ; } ; return s4 ( ) + s4 ( ) + '-' + s4 ( ) ; }
ramdom hash generator
ramdom hash generator