function pf() {
	if (document.styleSheets) {
		if (document.styleSheets.length >= 3) {
			if (document.styleSheets[0].title == "default" && document.styleSheets[1].title == "print") {
				document.styleSheets[0].disabled = true;
				document.styleSheets[1].disabled = false;
				document.styleSheets[2].disabled = false;
				window.print();
			}
		} else if (document.getElementById("theCss")) {
			document.getElementById("theCss").href = "/styles_print.css";
		} else {
			alert("A higher version of javascript is required!");
		}
	} else {
		alert("A higher version of javascript is required!");
	}
}