function change(objectName){
	document.getElementById(objectName).style.display = "block";
}
function changeback(objectName){
	document.getElementById(objectName).style.display = "none";
}

function toggleDisplay(objectToShow, objectToHide) {
	document.getElementById(objectToHide).style.display = "none";
	document.getElementById(objectToShow).style.display = "block";
}

<!--
menu_status = new Array(); 
function showHide(theid){
    if (document.getElementById) {
    var switch_id = document.getElementById(theid);

        if(menu_status[theid] != 'show') {
           switch_id.className = 'show';
           menu_status[theid] = 'show';
        }else{
           switch_id.className = 'hide';
           menu_status[theid] = 'hide';
        }
    }
}

//-->

<!--//--><![CDATA[//><!--

sfHover = function() {
	var sfEls = document.getElementById("topNav").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 formChange(that, fontColor, fieldText){
	that.style.color = fontColor;
	that.value = fieldText;
}