/** 
 *         Form validator
 *
 * In all forms which should be validated
 * please add onSubmit="return validate(this)"
 * all forms with class="contact". Please
 * insert required="true" attribute-value pair
 * into such validated objects:
 * - required text field;
 * - fieldset, in which at least one checkbox
 *   should be checked.
 * 
 * 
 * Example:
 * <form class="contact" onSubmit="return validate(this)">
 * <input type="text" required="true">
 * <fieldset required="true"><input type="checkbox"><input type="checkbox"></fieldset>
 * <input type="submit">
 * </form>
 */


var message = {
    "en" : "Please fill in all required information",
    "nl" : "Vult u a.u.b. de verplichte velden in",
    "es" : "Por favor rellene la siguiente informaciyn",
    "de" : "Bitte tragen Sie alle erforderlichen Daten ein",
    "fr" : "Merci de completer toutes les informations",
    "it" : "Per favore compilare n'informazione richiesta",
    "pt" : "Complete toda a informaзгo solicitada"
};

var language;

function doShow(form) {
    form.style.display = "block";
}

var EmailIsNotValid = "Email is not valid";
var FillAllRequiredFields = message[lang];
if (lang == "en")
{
	EmailIsNotValid = "Email is not valid";
}

if (lang == "de")
{
	EmailIsNotValid = "Ungültige E-mailadresse";
}

if (lang == "nl")
{
	EmailIsNotValid = "Dit is geen geldig email adres";
}

//Form validator
function validate( frm )
{
	var rt = new Object();
	rt.email = true;
	rt.required = true;
	frm.first_obligatory_email_field.value = "";
	
	//return:
	//rt.email - true if all emails are valid
	//rt.required - if all required fields are filled in
	rt = walkThroughForm( frm, rt , frm);
	//
	
	if ( rt.email==true &&  rt.required == true)//OK
	{
		return true;
	}
	else if (rt.email==false &&  rt.required == false)
	{
		alert(EmailIsNotValid + "\n" + FillAllRequiredFields);
		return false;
	}
	else if ( rt.email==true &&  rt.required == false)
	{
		alert(FillAllRequiredFields);
		return false;
	}
	else if (rt.email==false &&  rt.required == true)
	{
		alert(EmailIsNotValid);
		return false;
	}
	
	return false;
}
	
//Checks if String is valid email	
function isEmailAddr(email)
{
  var result = false;
  var theStr = new String(email);
  var index = theStr.indexOf("@");
  if (index > 0)
  {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }
  return result;
}
//Copies temp_name attribute to name attribute of all fields, 
//Copies the first required email field to first_obligatory_email_field,
//returns validation results:
//ret.email - true if all emails are valid
//ret.required - if all required fields are filled in
function walkThroughForm( obj, ret , frm)
{
	if ( (obj.tagName == "INPUT" && (obj.type == "text" || obj.type == "password" || obj.type == "file" )) 
		 || obj.tagName == "TEXTAREA")
	{
	    obj.style.backgroundColor = "";
		if (obj.getAttribute("temp_name") != null )
		{
			obj.setAttribute("name", obj.getAttribute("temp_name"), 0);
		}
		if (obj.getAttribute("required") == "true" && obj.value=="")
		{
			ret.required = false;
			obj.style.backgroundColor= "red";
		}
		if (obj.tagName == "INPUT" && obj.getAttribute("is_email") == "true" && obj.value!=null && obj.value!="" && !isEmailAddr(obj.value))
		{
			ret.email = false;
			obj.style.backgroundColor= "red";
		}
		if (obj.tagName == "INPUT" && obj.getAttribute("is_email") == "true" && obj.getAttribute("required") == "true" && obj.value!=null && obj.value!="" && frm.first_obligatory_email_field.value == "")
		{
			frm.first_obligatory_email_field.value = obj.value;
		}
	}
	else if ( (obj.tagName == "INPUT" && (obj.type == "radio" || obj.type == "checkbox" ))
	           || obj.tagName=="SELECT")
	{
		if (obj.getAttribute("temp_name") != null )
		{
			obj.setAttribute("name", obj.getAttribute("temp_name"), 0);
		}
	}

	for (var i=0; i<obj.childNodes.length; i++)
	{
		ret = walkThroughForm( obj.childNodes[i], ret , frm);
	}
	return ret;
}

/*
function validate(form) {
    var fields;
    var elements = new Array("INPUT","FIELDSET","TEXTAREA");
    var validated = true;
    language = (window.lang) ? window.lang : "en";
    var re = /\d{4} ?[A-Za-z]{2}/;          // Reg-exp to match postcode (e.g. 8243WE or 8243 WE)

    for (i in elements) {
        fields = form.getElementsByTagName(elements[i]);
        for (var j=0; j<fields.length; j++) {                      // run through all INPUT fields
            if (fields[j].getAttribute('required') && !validateBlock(fields[j])) {  // required field is empty
//                        addStyle(fields[j], "red");
				fields[j].style['backgroundColor'] = "#c3332c";
				fields[j].style['color'] = "#ffffff";
                        validated = false;
            } else if(fields[j].name == "Postcode" && !re.test(fields[j].value)) {  // wrong postcode
//                        addStyle(fields[j], "red");
				fields[j].style['backgroundColor'] = "#c3332c";
				fields[j].style['color'] = "#ffffff";
                        validated = false;
            } else {                                                                                                        //required field is ok
//			removeStyle(fields[j], "red");
				fields[j].style['backgroundColor'] = "#ffffff";
				fields[j].style['color'] = "#000000";
            }
        }
    }
        if (!validated)
	{
		alert(message[language]);
	}
        return validated;
}
*/

/*
 * Checks if obj contains valid input.
 * For the list of valid objects see above.
 */
function validateBlock(obj) {
    if (obj.tagName == "INPUT") {
        if (obj.value) return true;
    } else if (obj.tagName == "TEXTAREA") {
    	if (obj.value) return true;
    } else if (obj.tagName == "FIELDSET") {
        checkboxes = obj.getElementsByTagName("INPUT");
        checked = false;
        for (var i=0; i<checkboxes.length; i++) {
                if (checkboxes[i].type=="checkbox" || checkboxes[i].type=="radio") {
                    if (checkboxes[i].checked) checked = true;
                }
        }
        return checked;
    }
    return false;
}

//=====================================Menu Function=============================================
var menuTime;   // Timer identifier used to hide submenus
var hideSub = null;    // Menu item, for which submenu should be hidden
var closetype; //If 'all' then all menus must be closed. Else only 1 menu will be closed
var currentVisible = true;


var showTest = false;

function setTest() {
	if (showTest) {
		showTest = false;
	} else {
		showTest = true;
	}
	
}
//This function add some test data to title (convenient for testing)
function addTitle(text)
{
 	if (document.title.length > 55) {
 		document.title = '';
 	}                                	
	document.title += ' ' + text + ' ';
	
}

//This function add some test data to title (convenient for testing)
function addTestText(text)
{
	if (showTest) { 
		el = document.getElementById("FrontArticle");
		el.innerHTML = el.innerHTML + text + "=== ";
	}
	
	return true;
	
}


/* check if obj is menu item or its contents (oblect if true, null if false) */
function isMenuItem(obj) {
	if (!obj) {
		return false;
	}
	
	//Is needed for Safari - because in Safari text in <a> is also mouse overed but it does not have
	//tagName - therefore this function do not work in some cases
	if (!obj.tagName) {
		obj = (obj.parentElement) ? obj.parentElement : obj.parentNode;
	}
    while (obj && (obj != document) && (obj.tagName.toLowerCase() != "ul")) {
        if (obj.tagName.toLowerCase() == "li") return obj;
        obj = (obj.parentElement) ? obj.parentElement : obj.parentNode;
    }
    return false;
}

function isShouldOpen(obj) {
    while (obj && (obj != document)) {
    	if (obj.getAttribute('eltype')) {
        	if (obj.getAttribute('eltype').toLowerCase() == "open") return obj;
        }
        obj = (obj.parentElement) ? obj.parentElement : obj.parentNode;
    }
    return false;
}

function changeSrc(src, operation) {
	if (operation == 'open') {
		return src.replace(new RegExp("_open."), "_close.");
	} else {
		return src.replace(new RegExp("_close."), "_open.");
	}
}




function clearCurrent() {
	currentVisible = false;
	var currentEl = document.getElementById("current");
	if (currentEl) {
	    currentEl.className = "";
	}
}

/* handling multiple styles applied to an element */
function addStyle(obj, class_name) {
    var cn = obj.className;
    var re = new RegExp("(^| )" + class_name + "($| )");
    var re1 = new RegExp("(^| )"  + "*cust" + class_name + "($| )");
    var re2 = new RegExp("cust");
    if (cn.search(re) != -1) return false;
    if (cn.search(re1) != -1) return false;
    if ((cn.search(re2) != -1) && ((class_name == "sub") || (class_name == "sub over"))) {
		cn = cn.replace(re2, "cust" + class_name);
	} else {
	    if (cn != "" && cn.charAt(cn.length - 1) != " ") cn += " ";
	    cn += class_name;
	}
    obj.className = cn;
}
function removeStyle(obj, class_name) {

    if (!obj) return;
    var re = new RegExp(" " + class_name + " ");
    var re1 = new RegExp("(^" + class_name + " )|( " + class_name + "$)|(^"
                           + class_name + "$)");
    var re2 = new RegExp("cust" + class_name + "($| )");
    if ( closetype == 'all' )
    {
	    while (obj && (obj != document) && (obj.className != "menu") && (obj.className != "menu1") && (obj.className != "menu2")) {
        	if (obj.tagName.toLowerCase() == "li")
		{
		    var cn = obj.className;
		    cn = cn.replace(re, " ");
		    cn = cn.replace(re1, "");
		    cn = cn.replace(re2, "cust");
		    obj.className = cn;
		}

	        obj = (obj.parentElement) ? obj.parentElement : obj.parentNode;
	    }
	hideSub = null;
    }
    else
    {
	    var cn = obj.className;
	    cn = cn.replace(re, " ");
	    cn = cn.replace(re1, "");
	    cn = cn.replace(re2, "cust");
	    obj.className = cn;
    }
}

function parentUL(obj) {
	parentul = ((obj.parentElement) ? obj.parentElement : obj.parentNode);
	return parentul;
}

function parentLI(obj) {
	parentul = ((obj.parentElement) ? obj.parentElement : obj.parentNode);
	if ((parentul.className == "menu") || (parentul.className == "menu1") || (parentul.className == "menu2")) return null;
	parentli = ((parentul.parentElement) ? parentul.parentElement : parentul.parentNode);
	return parentli;
}

function doubleParentUL(obj) {
	parentul = ((obj.parentElement) ? obj.parentElement : obj.parentNode);
	if ((parentul.className == "menu") || (parentul.className == "menu1") || (parentul.className == "menu2")) return null;
	doubleparentul = ((parentul.parentElement) ? parentul.parentElement.parentElement : parentul.parentNode.parentNode);
	return doubleparentul;
}



function handleMouseOver(e) {
    var el = (e) ? e.target : event.srcElement;
    /*addTestText(" over:" + el.tagName + " ");
    if (!el.tagName) {
    	addTestText(" UNDEFINED:" + el.parentNode.tagName + " ");
    }*/
    //addTestText(" " + el.tagName + ":" + el.className + " ");
    var menuitem = isMenuItem(el);
    if (menuitem) {
    	
    //Removing id="current" from menu item which was current before this over (so previous mouse overed)
    //(I think this is not needed anymore - the same effect can be reached if you'll just place
    //.over style after .current style)
    if (currentVisible) {
    	clearCurrent();
    }
    
    //All needed for future work elements variables
	var vParentUL = null;
	var vParentLI = null;
	var vDoubleParentUL = null;
	var vHideParentUL = null;
	var vHideParentLI = null;
	var vHideDoubleParentUL = null;

	vParentUL = parentUL(menuitem);
	vParentLI = parentLI(menuitem);
	vDoubleParentUL = doubleParentUL(menuitem);
	
	//hideSub is menu item which was
	if (hideSub != null)
	{
		vHideParentUL = parentUL(hideSub);
		vHideParentLI = parentLI(hideSub);
		vHideDoubleParentUL = doubleParentUL(hideSub);
	}

	//If mouse were moved to the same menu element (so mouse out and mouse over is for same menu element - for example mouse out from a and mouse over to li)
	if (menuitem == hideSub)
	{
		clearTimeout(menuTime);
		addStyle(menuitem, "over");
		hideSub = menuitem;
	}
	//If there were no overed menu
	else if (hideSub == null)
	{
		addStyle(menuitem, "sub over");
	}
	//if Out and Over menu items are childs of the same UL
	else if (vParentUL == vHideParentUL)
	{
		clearTimeout(menuTime);
		closetype = 'current';
		removeStyle(hideSub, "sub");
		addStyle(menuitem, "sub over");
		hideSub = menuitem;
	}
	//If out menu item is parent of over menu item
	else if ((vParentLI != null) && (vParentLI == hideSub))
	{
		clearTimeout(menuTime);
		addStyle(menuitem, "sub over");
		hideSub = menuitem;
	}
	//If mouse out menu item was child of mouse overed menu item
	else if ((vHideParentLI != null) && (vHideParentLI == menuitem))
	{
		clearTimeout(menuTime);
		closetype = 'current';
		removeStyle(hideSub, "sub");
		addStyle(menuitem, "over");
		hideSub = menuitem;
	}
	//If out item is second level item and mouse is moved to some first level item
	else if ((vHideDoubleParentUL != null) && (vHideDoubleParentUL == vParentUL))
	{
		clearTimeout(menuTime);
		closetype = 'current';
		removeStyle(hideSub, "sub");
		removeStyle(vHideParentLI, "sub");
		addStyle(menuitem, "sub over");
		hideSub = menuitem;
	}
	else
	{
		clearTimeout(menuTime);
		closetype = 'all';
		removeStyle(hideSub, "sub");
	}	


    }
}

function handleMouseOut(e) {
    var el = (e) ? e.target : event.srcElement;

    /*addTestText(" out:" + el.tagName + " ");
    if (!el.tagName) {
    	addTestText(" UNDEFINED:" + el.parentNode.tagName + " ");
    }*/
    var toel = (e) ? e.relatedTarget : event.toElement;
    var menuitem = isMenuItem(el);

    if (menuitem && (menuitem != isMenuItem(toel))) {

        removeStyle(menuitem, "over");
        hideSub = menuitem;
		closetype = 'all';
        menuTime = setTimeout('removeStyle(hideSub, "sub")', 200);
    }
}

function handleClick(e) {
    var el = (e) ? e.target : event.srcElement;
    var menuitem = isMenuItem(el);
    var shouldOpen = isShouldOpen(el);
    
    if (menuitem && el.tagName.toLowerCase() != "a") {
		neededA = menuitem.getElementsByTagName("a");
		if ( neededA.length != 0 ) {
			neededLink = neededA[0].getAttribute('href',2);
			neededLocation = neededA[0].getAttribute('target',2);
			if (neededLocation && neededLocation == "_blank")
			{
				window.open(neededLink,"","");
			} else {
				location.assign(neededLink);
			}
		}
	}
	
	if (shouldOpen) {                                      
		if (shouldOpen.getAttribute('actionvalue') == 'closed') {
			shouldOpen.nextSibling.style['display'] = 'block';
			shouldOpen.setAttribute('actionvalue', 'opened');
			shouldOpen.firstChild.firstChild.src = changeSrc(shouldOpen.firstChild.firstChild.src, 'open');
		} else {
			shouldOpen.nextSibling.style['display'] = 'none';
			shouldOpen.setAttribute('actionvalue', 'closed');
			shouldOpen.firstChild.firstChild.src = changeSrc(shouldOpen.firstChild.firstChild.src, 'close');
		}
	}
}

function handleLoad() {
   
    
    // This overcomes event-handling bug in menuitems in Mozilla
    if (navigator.appName.indexOf('Netscape') != -1) {
        var re = new RegExp("(^| )menu($| )");
        var re1 = new RegExp("(^| )menu1($| )");
        var re2 = new RegExp("(^| )menu2($| )");
        var menus = document.getElementsByTagName("ul");
        var mozMenuItem;
        
        for (var i = 0; i < menus.length; i++) {
            if ((menus[i].className.search(re) != -1) || (menus[i].className.search(re1) != -1) || (menus[i].className.search(re2) != -1)) {
                var menuItems = document.getElementsByTagName("li");
                for (var k = 0; k < menuItems.length; k++) {
                    mozMenuItem = document.createElement("div");
                    mozMenuItem.className = "moz";
                    menuItems[k].appendChild(mozMenuItem);
                }
            }
        }
    }
    
	//Adding validator to forms
	var forms = document.getElementsByTagName("FORM");
        for (var i = 0; i < forms.length; i++) {
            if (forms[i].className.indexOf("contact") != -1) {
		doShow(forms[i]);
            }
        }

}



function dPopup(url){
    newPopup = window.open(
        url,
        "",
        "height=300, width=400, menubar=no, resizable=yes, " +
        "scrollbars=no, status=no, titlebar=yes, toolbar=no, " +
        "left=" + (screen.availWidth/5*2) + ", " +
        "top=" + (screen.availHeight/5*1)
        );
}

function errorTrap() {
    return true;
}

function loadImage(imgName, imgWidth, imgHeight)
{
	imgWidth += 12;
	imgHeight += 15;
	var myt = "newWin = window.open(\"\", \"\", \"height="+ imgHeight + ", width=" + imgWidth + ",resizable=yes\")";
	eval(myt);
	newWin.document.write("<body style=\"padding: 0px; margin: 0px;\">");
	newWin.document.write("<table>");
	newWin.document.write("<tr>");
	newWin.document.write("<td style=\"background-color: #FFFFFF; padding: 5px;\">");
	newWin.document.write("<img src=\"" + imgName + "\" border=\"0\">");
	newWin.document.write("</td>");
	newWin.document.write("</tr>");
	newWin.document.write("</table>");
	newWin.document.write("</body>");
	newWin.document.close();
}


document.onmouseover = handleMouseOver;
document.onmouseout = handleMouseOut;
document.onclick = handleClick;
window.onload = handleLoad;
//window.onerror=errorTrap;