function toggle(id){
    ul = "ul_" + id;
    img = "img_" + id;
    ulElement = document.getElementById(ul);
    imgElement = document.getElementById(img);
    if (ulElement){
            if (ulElement.className == 'closed'){
                    ulElement.className = "open";
                    imgElement.src = "pics/opened.gif";
            }else{
                    ulElement.className = "closed";
                    imgElement.src = "pics/closed.gif";
            }
    }
}

function check_syntax() {
        var msg = "OK"
        if (document.contact.namn.value == '') {
            msg = "'Name' is a required field!"
        }
        if (document.contact.subject.value == '') {
            msg = "'Subject' is a required field!"
        }
        if (document.contact.mess.value == '') {
            msg = "'Message' is a required field!"
        }
        if (msg == "OK") {
            document.contact.status.value = 0
        } else {
            document.contact.status.value = 1
            alert (msg)
	}
}

function getLabelForId(id) {
 var label, labels = document.getElementsByTagName('label');
 for (var i = 0; (label = labels[i]); i++) {
   if (label.htmlFor == id) {
     return label;
   }
 }
 return false;
}

function checkRequired(id) {
 var formfield = document.getElementById(id);
 var label = getLabelForId(id);
 if (formfield.value.length == 0) {
   label.className = 'problem';
 } else {
   label.className = 'completed';
 }
}

function show_settings() {
        var browserVer = parseInt(navigator.appVersion);
	document.write("<table border='0' cellspacing='3' cellpadding='5'>")
	document.write("<tr><td>Plattform: </td><td><b>", navigator.platform,"</td></tr>")
	document.write("<tr><td>Webb l&auml;sare: </td><td><b>", navigator.appName,"</td></tr>")
	document.write("<tr><td>Version: </td><td><b>", browserVer,"</td></tr>")
	document.write("<tr><td>Bildsk&auml;rmens uppl&ouml;sning: </td><td><b>",screen.width," x ",screen.height,"</td></tr>")
	document.write("<tr><td>F&auml;rgdjup: </td><td><b>", screen.colorDepth," </td></tr>")
	document.write("<tr><td>Cookies till&aring;tna: </td><td><b>", navigator.cookieEnabled,"</td></tr>")
	document.write("<tr><td>Java aktiverat: </td><td><b>")
	if (navigator.javaEnabled())
        	document.write("Ja</td></tr>");
	else
        	document.write("Nej</td></tr>")
	document.write("<tr><td>Cookies till&aring;tna: </td><td><b>")
	if (window.navigator.cookieEnabled)
        	document.write("Ja</td></tr>");
	else
        	document.write("Nej</td></tr>");
	document.write("</table>")                                                                    
}