isNS4 = (document.layers) ? true : false;
NS4 = (document.layers);
IE4 = (document.all);
ver4 = (NS4 || IE4);   
isMac = (navigator.appVersion.indexOf("Mac") != -1);
isMenu = (NS4 || (IE4 && !isMac));
function popUp(){return};
function popDown(){return};
function startIt(){return};
var platform = navigator.appVersion;
isUNIX = (platform.indexOf("X11") != -1) ||
  (platform.indexOf("Linux") != -1) ||
  (platform.indexOf("SunOS") != -1) ||
  (platform.indexOf("IRIX") != -1) ||
  (platform.indexOf("HP-UX") != -1);

if (!ver4) event = null;

browser = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) || ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )))

// preload universal images
if (browser) {

	about_off = new Image;
	about_off.src = "images/p3c_btn_aboutus.gif";
	about_on = new Image;
	about_on.src = "images/p3c_btn_aboutus_over.gif";
	
	proposals_off = new Image;
	proposals_off.src = "images/p3c_btn_proposals.gif";
	proposals_on = new Image;
	proposals_on.src = "images/p3c_btn_proposals_over.gif";
	
      partnerships_off = new Image;
	partnerships_off.src = "images/p3c_btn_partnerships.gif";
	partnerships_on = new Image;
	partnerships_on.src = "images/p3c_btn_partnerships_over.gif";

	projects_off = new Image;
	projects_off.src = "images/p3c_btn_projects.gif";
	projects_on = new Image;
	projects_on.src = "images/p3c_btn_projects_over.gif";

	contact_off = new Image;
	contact_off.src = "images/p3c_btn_contact.gif";
	contact_on = new Image;
	contact_on.src = "images/p3c_btn_contact_over.gif";

	}

function putImage(imgDocID,imgObjName) {
if (browser) {
        document.images[imgDocID].src = eval(imgObjName + ".src")
	}
}