function ContactUs(linktxt,subjectline,e1,e2,e3) {

	if (e1.length == 0) {
		e1 = "Eri";
		e2 = "k@bert";
		e3 = "pc.com";
	}
	document.write("<a href='" + "mai" + "lto:" + e1 + e2 + e3 + "?subject=" + subjectline + "'>" + linktxt + "</a>");
}