sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);

function ck(checkthis)
{
    document.getElementById("radczone").className = "rad";
    document.getElementById("radpzone").className = "rad";
    document.getElementById("radwmail").className = "rad";
    document.getElementById(checkthis).className = "radchecked";
    if(checkthis=="radczone")
    {
        document.getElementById("lt").value = "2";
    }
    else if(checkthis=="radpzone")
    {
        document.getElementById("lt").value = "3";
    }
    else if(checkthis=="radwmail")
    {
        document.getElementById("lt").value = "1";
    }
}