/*

javascript library
by matto, 2005-06

*/
/*
menuActive = function()
{
	// activate menu for internet explorer
    if(document.all && document.getElementById)
	{
        start = document.getElementById("sub_menu");

        for(i=0; i<start.childNodes.length; i++)
        {
            node = start.childNodes[i];
            if(node.nodeName=="LI")
            {
                node.onmouseover = function()
                {
                    this.className += " over";
                }

                node.onmouseout = function()
                {
                    this.className = this.className.replace(" over", "");
                }
        	}
        }

        // for internet explorer under windows, remove some features :(
        if(navigator.appName.indexOf("Microsoft Internet Explorer") != -1 && navigator.platform.indexOf("Win") == 0)
        {
        	document.getElementById("bottomBar").style.position = "static";
        	document.getElementById("pageTable").style.position = "static";
        	document.getElementById("pageTable").style.marginTop = "0px";
        }
    }
}

window.onload = menuActive;
*/
function open_popup(url)
{
    parms = "toolbar=no,location=no,directories=no,status=no,scrollbars=yes,menubar=yes,resizable=yes,width=600,height=600";

    pop = window.open(url, "popup", parms);

    if(navigator.appName.indexOf("Netscape") != -1)
        pop.focus();
}

// close window and try to reload opener page
function close_popup()
{
        if(opener != null)
                opener.location.reload();

        window.close()
}

function popupPosting(baseurl, id_article)
{
        var url, parms;
        url = baseurl + "posting.php?id_artikel=" + id_article;
        parms = "toolbar=no,location=no,directories=no,status=no,scrollbars=yes,menubar=no,width=490,height=500";
        parms = parms + ",screenX=200,screenY=150";

        postwindow = window.open(url, 'Kommentar', parms);

        if(navigator.appName.indexOf("Netscape") != -1)
                postwindow.focus();
}

function popupTranslation(baseurl, id_language, table, field, id_table)
{
        var url, parms;
        url = baseurl + "translate.php?id_language="+id_language+"&table="+table+"&field="+field+"&id_table="+id_table;
        parms = "toolbar=no,location=no,directories=no,status=no,resizable=yes,scrollbars=yes,menubar=no,width=700,height=550";
        parms = parms + ",screenX=200,screenY=100";

        transwindow = window.open(url, 'Translation', parms);

        if(navigator.appName.indexOf("Netscape") != -1)
			transwindow.focus();
}

function popupGallery(url, d, no, cms)
{
        var url, parms;
        url = "gallery.php?di=" + d;
        if(no != -1)
        	url = url + "&nr="+no;
        if(cms != -1)
        	url = "../" + url;
        parms = "toolbar=no,location=no,directories=no,status=no,scrollbars=yes,menubar=no,width=800,height=600,resizable=yes";

        qn = window.open(url, "Gallery", parms);

        if(navigator.appName.indexOf("Netscape") != -1)
                qn.focus();
}

function editElement(baseurl, table, field, id_table)
{
        var url, parms;
        url = baseurl + "edit-element.php?table="+table+"&field="+field+"&id_table="+id_table;
        parms = "toolbar=no,location=no,directories=no,status=no,scrollbars=yes,menubar=no,width=700,height=550";
        parms = parms + ",screenX=200,screenY=100";

        editwindow = window.open(url, 'Edit', parms);

        if(navigator.appName.indexOf("Netscape") != -1)
			editwindow.focus();
}
/*
function menuMouseOver(image, switchOn)
{
	if(image == null)
		return;

	var existingName = image.getAttribute("src");
	var parts = existingName.split(".");

	if(switchOn)
	{
		parts[parts.length-2] += "_hi";
	}
	else
	{
		var nameParts = parts[parts.length-2].split("_");
		nameParts.pop();
		parts[parts.length-2] = nameParts.join("_");
	}

	var newName = parts.join(".");

	image.setAttribute("src", newName);
}

function switchLogoStatus(logoNo)
{
	var logo =			document.getElementById("startpage_logo");
	var newFileName =	"img/D-"+logoNo+".GIF";

	logo.src = newFileName;
}
*/

function newsarea_switch(oldno, newno, milliseconds)
{
	old_element_id = "newsarea_"+oldno;
	old_newsarea = document.getElementById(old_element_id);
	new_element_id = "newsarea_"+newno;
	new_newsarea = document.getElementById(new_element_id);

	if(new_newsarea == null)
	{
		newno = 1;
		new_element_id = "newsarea_1";
		new_newsarea = document.getElementById(new_element_id);
	}

	if(new_newsarea != null)
	{
		if(old_newsarea != null)
			old_newsarea.style.display = "none";
		new_newsarea.style.display = "block";

		newsareaTimer = window.setTimeout("newsarea_switch("+newno+", "+(newno+1)+", "+milliseconds+")", milliseconds);
	}
}

function close_newsarea()
{
	var count = 1;

	do
	{
		area = document.getElementById("newsarea_"+count);
		if(area != null)
			area.style.display = "none";

		count++;
	}
	while(area != null)

	window.clearTimeout(newsareaTimer);

	document.cookie = "newsarea_off=1";

	// show switch
	nswitch = document.getElementById("news_switch");
	if(nswitch != null)
		nswitch.style.display = "inline";
}

function open_newsarea(milliseconds)
{
	existing = document.cookie;
	if(existing.indexOf("newsarea_off=1") != -1)	// if newsarea is NOT currently on
	{
		first_area = document.getElementById("newsarea_1");
		if(first_area != null)
		{
			first_area.style.display = "block";
			document.cookie = "newsarea_off=0";
			newsareaTimer = window.setTimeout("newsarea_switch(1, 2, "+milliseconds+")", milliseconds);
		}

		// hide switch
		nswitch = document.getElementById("news_switch");
		if(nswitch != null)
			nswitch.style.display = "none";
	}
}

function resize_shop_iframe()
{
	frame = document.getElementById("shop_iframe");

	frame.style.height = window.innerHeight-220;
}

function popupResourceSelector(baseurl, id_article)
{
        var url, parms;
        url = baseurl + "select-resource.php?id_article=" + id_article;
        parms = "toolbar=no,location=no,directories=no,status=no,scrollbars=yes,menubar=no,width=700,height=550";
        parms = parms + ",screenX=200,screenY=100";

        transwindow = window.open(url, 'Ressourcen', parms);

        if(navigator.appName.indexOf("Netscape") != -1)
			transwindow.focus();
}

function count_up(checkbox, index)
{
	var textInput = null;
	var maxIndex = 0;
	var form_object = document.selection_form;
	var inputCounter = 0;

    try
	{
        elements = form_object.elements;


        for(i=0; i<elements.length; i++)
        {
             if(elements[i].type == "text" && elements[i].name.indexOf("descr") != 0)
             {
             	if(inputCounter == index)
             		textInput = elements[i];

             	if(elements[i].value != '' && elements[i].value > maxIndex)
             		maxIndex = elements[i].value;

             	inputCounter++;
             }
        }

        if(maxIndex == '')
        	maxIndex = 0;

        if(textInput != null)
        {
        	if(!checkbox.checked)	// switching off
        		textInput.value = '';
        	else					// switching on
        		textInput.value = (maxIndex*1) + 1;	// multiplication in order to avoid string concatenation
        }

    }
    catch(ex)
    {
		alert(ex);
    }
}

function showResource(resource_name, on)
{
	var images = document.getElementsByTagName('img');
	var showLinks = document.getElementsByTagName('a');

	for(var i=0; i<images.length; i++)
	{
		thisImage = images[i];

		if(thisImage.name == resource_name)
		{
			targetState = (on ? 'block' : 'none');
			thisImage.style.display = targetState;
			// find show link
			for(var j=0; j<showLinks.length; j++)
			{
				if(showLinks[j].name == resource_name)
				{
					var showLink = showLinks[j];
					break;
				}
			}

			showLink.innerHTML = (on ? 'ausblenden' : 'zeigen');
			showLink.href = (on ? "javascript:showResource('"+resource_name+"',false);" : "javascript:showResource('"+resource_name+"',true);");
		}
	}
}

function withAllResources(on)
{
	var images = document.getElementsByTagName('img');
	var showLinks = document.getElementsByTagName('a');
	var targetState = (on ? 'block' : 'none');

	for(var i=0; i<images.length; i++)
	{
		thisImage = images[i];

		if(thisImage.name != '' && thisImage.name != null)
		{
			thisImage.style.display = targetState;
			resource_name = thisImage.name;

			// find show link
			for(var j=0; j<showLinks.length; j++)
			{
				if(showLinks[j].name == resource_name)
				{
					var showLink = showLinks[j];
					break;
				}
			}

			showLink.innerHTML = (on ? 'ausblenden' : 'zeigen');
			showLink.href = (on ? "javascript:showResource('"+resource_name+"',false);" : "javascript:showResource('"+resource_name+"',true);");
		}
	}

	if(!on)
		window.scrollTo(0, 0);
}