utilityBrowserVer = parseInt(navigator.appVersion);

function imgOn(imgName) {
  	if (utilityBrowserVer >= 3) {
		imgOnString = eval(imgName + "_on.src");
		document.images[imgName].src = imgOnString;
	}
}

function imgOff(imgName) {
	if (utilityBrowserVer >= 3) {
		imgOffString = eval(imgName + "_off.src");
		document.images[imgName].src = imgOffString;
	}
}

function goToLink(address) {
	var linkURL = address.options[address.selectedIndex].value;
	window.top.location.href = linkURL;
	address.selectedIndex=0;
}

function openWindow(address, width, height) {
	var newWindow = window.open(address, 'Popup_Window', 'width=' + width + ',height=' + height + ',toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no');
	newWindow.focus();
}

function openDownloadWin(address, width, height) {
	var newWindow = window.open(address, 'Popup_Window', 'width=' + width + ',height=' + height + ',toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no');
	newWindow.focus();
}

function confirmWindow(url, text) {

	if (confirm(text)) {
		window.go = url;
		window.location = url;
	}
}

/**
 * Sets a Cookie with the given name and value.
 *
 * name       Name of the cookie
 * value      Value of the cookie
 * [expires]  Expiration date of the cookie (default: end of current session)
 * [path]     Path where the cookie is valid (default: path of calling document)
 * [domain]   Domain where the cookie is valid
 *              (default: domain of calling document)
 * [secure]   Boolean value indicating if the cookie transmission requires a
 *              secure transmission
 */
function setCookie(name, value, expires, path, domain, secure)
{
    document.cookie= name + "=" + escape(value) +
        ((expires) ? "; expires=" + expires.toGMTString() : "") +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") +
        ((secure) ? "; secure" : "");
}

/**
 * Gets the value of the specified cookie.
 *
 * name  Name of the desired cookie.
 *
 * Returns a string containing value of specified cookie,
 *   or null if cookie does not exist.
 */
function getCookie(name)
{
    var dc = document.cookie;
    var prefix = name + "=";
    var begin = dc.indexOf("; " + prefix);
    if (begin == -1)
    {
        begin = dc.indexOf(prefix);
        if (begin != 0) return null;
    }
    else
    {
        begin += 2;
    }
    var end = document.cookie.indexOf(";", begin);
    if (end == -1)
    {
        end = dc.length;
    }
    return unescape(dc.substring(begin + prefix.length, end));
}

/**
 * Deletes the specified cookie.
 *
 * name      name of the cookie
 * [path]    path of the cookie (must be same as path used to create cookie)
 * [domain]  domain of the cookie (must be same as domain used to create cookie)
 */
function deleteCookie(name, path, domain)
{
    if (getCookie(name))
    {
        document.cookie = name + "=" +
            ((path) ? "; path=" + path : "") +
            ((domain) ? "; domain=" + domain : "") +
            "; expires=Thu, 01-Jan-70 00:00:01 GMT";
    }
}

function bookmark(pageName, address)
{
	if (window.external)
	{
		window.external.AddFavorite(address,pageName)
	}
	else
	{
		alert("Sorry! Your browser doesn't support this function - press Control-D to bookmark.");
	}
}