function writeCounter()
{
    var myDate = new Date();
    document.write('<img width="1" height="1" src="http://www.netorek.fi/tuotesivu_laskuri.php"' + myDate.getTime() + "/>");
}

function doIntranetLogin(formName)
{
    document.forms[formName].action  = "https://webmail.valikko.com/jetspeed/portal";
    document.forms[formName].target  = "_blank";
    document.forms[formName].enctype = "application/x-www-form-urlencoded";
    document.forms[formName].submit();
}

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(imagePath) 
{
    if (document.images) 
    {
		MenuItemBackground_over = newImage(imagePath + "/MenuItemBackground-over.gif");
		MenuItemBackground = newImage(imagePath + "/MenuItemBackground.gif");
        preloadFlag = true;
    }
}    

function changeBackground(elementId,imageName)
{
    if (document.images)
    {
        var elem = document.getElementById(elementId);
        elem.style.backgroundImage = "url('"+ imageName + "')";
    } 
}