var InternetExplorer = navigator.appName.indexOf("Microsoft") != -1;

function openLegal() {
        window.open('legal.html','legal','width=563,height=739','menubar=no,toolbar=no,status=no,scrollbars=no,resizable=no,')
}

function openWin(html,name,w,h,features) {
        x = (screen.availWidth - w) / 2
        y = (screen.availHeight - h - 100) / 2 
        win = window.open(html,name,'width='+w+',height='+h+','+features)
        if(InternetExplorer) {win.moveTo(x,y)}
                win.focus()
        }



var InternetExplorer = navigator.appName.indexOf("Microsoft") != -1;

function openCredit() {
        window.open('site_credit.html','credits','width=563,height=262','menubar=no,toolbar=no,status=no,scrollbars=no,resizable=no,')
}

function openCred(html,name,w,h,features) {
        x = (screen.availWidth - w) / 2
        y = (screen.availHeight - h - 100) / 2 
        win = window.open(html,name,'width='+w+',height='+h+','+features)
        if(InternetExplorer) {win.moveTo(x,y)}
                win.focus()
        }


if (top.location != self.location) {
	    top.location.replace(self.location)
	    }

       


function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		basic_over = newImage("rollover/basic_on.gif");
		con_over = newImage("rollover/con_on.gif");
		legal_over = newImage("rollover/legal_on.gif");
		profile_over = newImage("rollover/profile_on.gif");
		credits_over = newImage("rollover/site_credits_on.gif");
		sym_over = newImage("rollover/sym_on.gif");
		book_over = newImage("rollover/book_on.gif");
		basic_over = newImage("roll/basic_on.gif");
		con_over = newImage("roll/con_on.gif");
		legal_over = newImage("roll/legal_on.gif");
		profile_over = newImage("roll/profile_on.gif");
		credits_over = newImage("roll/site_credits_on.gif");
		sym_over = newImage("roll/sym_on.gif");
		book_over = newImage("roll/book_on.gif");

		preloadFlag = true;
	}
}