var getElementsByClassName = function (className, tag, elm){
	if (document.getElementsByClassName) {
		getElementsByClassName = function (className, tag, elm) {
			elm = elm || document;
			var elements = elm.getElementsByClassName(className),
				nodeName = (tag)? new RegExp("\\b" + tag + "\\b", "i") : null,
				returnElements = [],
				current;
			for(var i=0, il=elements.length; i<il; i+=1){
				current = elements[i];
				if(!nodeName || nodeName.test(current.nodeName)) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	else if (document.evaluate) {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = "",
				xhtmlNamespace = "http://www.w3.org/1999/xhtml",
				namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace)? xhtmlNamespace : null,
				returnElements = [],
				elements,
				node;
			for(var j=0, jl=classes.length; j<jl; j+=1){
				classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";
			}
			try	{
				elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);
			}
			catch (e) {
				elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);
			}
			while ((node = elements.iterateNext())) {
				returnElements.push(node);
			}
			return returnElements;
		};
	}
	else {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = [],
				elements = (tag === "*" && elm.all)? elm.all : elm.getElementsByTagName(tag),
				current,
				returnElements = [],
				match;
			for(var k=0, kl=classes.length; k<kl; k+=1){
				classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));
			}
			for(var l=0, ll=elements.length; l<ll; l+=1){
				current = elements[l];
				match = false;
				for(var m=0, ml=classesToCheck.length; m<ml; m+=1){
					match = classesToCheck[m].test(current.className);
					if (!match) {
						break;
					}
				}
				if (match) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	return getElementsByClassName(className, tag, elm);
};

function GetRootRadWindowManager() {
    var radWin = GetRadWindow();
    if (radWin != null) {
        var parentPage = GetRadWindow().BrowserWindow;
        return parentPage.GetRadWindowManager();
    }
    return GetRadWindowManager();
}

/* Skapar och visar en radwindow med bredd och nöjd. */
function OpenWindow(url, windowName, width, height) {
    var o = CreateWindow(url, windowName, width, height);
    o.show();
    return false;
}

/* Skapar och returnerar en radwindow ifall man behöver fixa mera med den än bredd och höjd. */
function CreateWindow(url, windowName, width, height) {
    try {
        var oWnd = GetRootRadWindowManager().open(url, windowName);
        oWnd.setSize(width, height);
        oWnd.SetModal(true);
        oWnd.set_visibleStatusbar(false);
        return oWnd;
    }
    catch (e) {
        alert(e);
    }
}

function GetRadWindow() {
    var radWin = null;
    if (window.radWindow)
        radWin = window.radWindow;
    else if (window.frameElement != null && window.frameElement.radWindow)
        radWin = window.frameElement.radWindow;
    return radWin
}