function radioActive(radioGroup) {
     // Loop through the group
     for (var i=0; i<radioGroup.length; i++) {
         // When we find the activated button, return the index
         if (radioGroup[i].checked) {
             return radioGroup[i].value;
         }
     }
     // If no button is activated, return -1
     return -1
}

/* Find DOM Function */

var isDHTML = 0;
var isID = 0;
var isAll = 0;
var isLayers = 0;

if (document.getElementById) {isID = 1; isDHTML = 1;}
else {
if (document.all) {isAll = 1; isDHTML = 1;}
else {
browserVersion = parseInt(navigator.appVersion);
if ((navigator.appName.indexOf('Netscape') != -1) && (browserVersion == 4)) {isLayers = 1; isDHTML = 1;}
}}

function findDOM(objectID,withStyle) {
	if (withStyle == 1) {
		if (isID) { return (document.getElementById(objectID).style) ; }
		else { 
			if (isAll) { return (document.all[objectID].style); }
		else {
			if (isLayers) { return (document.layers[objectID]); }
		};}
	}
	else {
		if (isID) { return (document.getElementById(objectID)) ; }
		else { 
			if (isAll) { return (document.all[objectID]); }
		else {
			if (isLayers) { return (document.layers[objectID]); }
		};}
	}
}

/* CSS DOM Rollover script */

function setClass(objectID,newClass) {
var dom = findDOM(objectID,0);
dom.className = newClass;
}

function setQuickSearchPriceVisibility() { 
var adtype = radioActive(document.quick_search_form.adtype);
    var salesListClass = 'visible';
    var rentalListClass = 'displayNone';
    if (adtype == 'Rental') {
            salesListClass = 'displayNone';
            rentalListClass = 'visible';
    }
    setClass('pricesales_qs', salesListClass);
    setClass('pricerental_qs', rentalListClass);	
}

function setSearchPriceVisibility() { 
var adtype = radioActive(document.search_form.adtype);
    var salesListClass = 'visible';
    var rentalListClass = 'displayNone';
    if (adtype == 'Rental') {
            salesListClass = 'displayNone';
            rentalListClass = 'visible';
    }
    setClass('pricesales', salesListClass);
    setClass('pricerental', rentalListClass);	
}

<!--
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}
//-->