function postBack (to, p) {
	var myForm = document.createElement("form");
	myForm.method = "post";
	myForm.action = to;
	for (var k in p) {
		var myInput = document.createElement("input") ;
		myInput.setAttribute("name", k);
		myInput.setAttribute("value", p[k]);
		myForm.appendChild(myInput);
	}
	document.body.appendChild(myForm);
	myForm.submit();
	document.body.removeChild(myForm);
}