function getE(name) {
    if (document.getElementById)
        var elem = document.getElementById(name);
    else if (document.all)
        var elem = document.all[name];
    else if (document.layers)
        var elem = document.layers[name];
    return elem;
}

function OpenWindow(query, w, h, scroll) {
    var l = (screen.width - w) / 2;
    var t = (screen.height - h) / 2;

    winprops = 'resizable=0, height=' + h + ',width=' + w + ',top=' + t + ',left=' + l + 'w';
    if (scroll) winprops += ',scrollbars=1';
    var f = window.open(query, "_blank", winprops);
}

function removeParameter(parameter) {
    //Get Query String from url
    fullQString = window.location.search.substring(1);

    paramCount = 0;
    queryStringComplete = "?";

    if (fullQString.length > 0) {
        //Split Query String into separate parameters
        paramArray = fullQString.split("&");

        //Loop through params, check if parameter exists.  
        for (i = 0; i < paramArray.length; i++) {
            currentParameter = paramArray[i].split("=");
            if (currentParameter[0] == parameter) //Parameter already exists in current url
            {
                //don't include existing (will be appended to end of url)
            }
            else //Existing unrelated parameter
            {
                if (paramCount > 0)
                    queryStringComplete = queryStringComplete + "&";

                queryStringComplete = queryStringComplete + paramArray[i];
                paramCount++;
            }
        }
    }

    window.location = self.location.protocol + '//' + self.location.host + self.location.pathname + queryStringComplete;
}