/*\------------------------------------------------------------------------

	>> neptuneland.co.uk
	>> 11/02/06				
	>> Kostis Sakkas				
		
------------------------------------------------------------------------\*/


window.onload	= function() {init();externalLinks();setContent();}
window.onresize	= function() {setContent();}




/*\------------------------------------------------------------------------
	
	This function is used for the Suckerfish (flyout) menus
	Author : http://bmb.cameronmoll.be/
	
------------------------------------------------------------------------\*/


sfHover	=	function() {
	var sfEls = document.getElementById("menu").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);


/*\------------------------------------------------------------------------
	
	menuExpandable.js - implements an expandable menu based on a HTML list
	Author: Dave Lindquist (http://www.gazingus.org)
	
------------------------------------------------------------------------\*/


if (!document.getElementById)
    document.getElementById = function() { return null; }

function initializeMenu(menuId, actuatorId) {
    var menu = document.getElementById(menuId);
    var actuator = document.getElementById(actuatorId);

    if (menu == null || actuator == null) return;

    //if (window.opera) return; // I'm too tired

	actuator.parentNode.style.background = "url(../img/arrow-down-sm.gif) 90% 10px no-repeat";
    actuator.onclick = function() {
        var display = menu.style.display;
        this.parentNode.style.background =
            (display == "block") ? "url(../img/arrow-down-sm.gif) 90% 10px no-repeat" : "url(../img/arrow-up-sm.gif) 90% 10px no-repeat";
        menu.style.background = "url(/images/square.gif)";
        menu.style.display = (display == "block") ? "none" : "block";

        return false;
    }
}



/*\------------------------------------------------------------------------
	
	Opens new windows via rel="external"
	url : http://www.brucelawson.co.uk/index.php/2005/opening-links-in-new-windows-in-xhtml-strict/
	
------------------------------------------------------------------------\*/

function externalLinks() {
	if (!document.getElementsByTagName) return;
	var anchors = document.getElementsByTagName("a");
	for (var i=0; i<anchors .length; i++) {
		var anchor = anchors[i];
		if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external") {
			anchor.target = "_blank";
			anchor.title = (anchor.title != "") ? anchor.title+" (Ανοίγει σε νέο παράθυρο)" : "Ανοίγει σε νέο παράθυρο";
			anchor.className = (anchor.className != '') ? anchor.className+' external' : 'external';
		}
	}
}


/*\------------------------------------------------------------------------
	
	Position footer div at the bottom of the page using DOM
	
	Source from the precious AListApart.com
	Article : Exploring Footers
	URL : http://www.alistapart.com/articles/footers/
	[changed the setFooter() a bit]

------------------------------------------------------------------------\*/

function getWindowHeight() {
	var windowHeight = 0;
	if (typeof(window.innerHeight) == 'number') {
		windowHeight = window.innerHeight;
	}
	else {
		if (document.documentElement && document.documentElement.clientHeight) {
			windowHeight = document.documentElement.clientHeight;
		}
		else {
			if (document.body && document.body.clientHeight) {
				windowHeight = document.body.clientHeight;
			}
		}
	}
	return windowHeight;
}
		
function setContent() {
	if (document.getElementById) {
		var windowHeight = getWindowHeight();
		if (windowHeight > 0) {
			
			var contentElement  = document.getElementById('content');
			var contentHeight  = contentElement.offsetHeight;
			
			if(contentHeight < 550)
				contentElement.style.height= ' 550px';
			else
				contentElement.style.height= contentHeight + 'px';
		}
	}
}



/*\------------------------------------------------------------------------
	
	Replaces email addresses with the title attr.
	credits : initial idea from http://www.badboy.ro/articles/2005-01-25/index.php
	
------------------------------------------------------------------------\*/

emailCloak = function() {
	if (document.getElementById) {
		var alltags = document.all? document.all : document.getElementsByTagName("*");
		for (i=0; i < alltags.length; i++) {
			if (alltags[i].className == "emailCloak") {
				var oldText = alltags[i].firstChild;
				var emailAddress = alltags[i].firstChild.nodeValue;
				var user = emailAddress.substring(0, emailAddress.indexOf("("));
				var website = emailAddress.substring(emailAddress.indexOf(")")+1, emailAddress.length);
				var newText = user+"@"+website;
			  	var a = document.createElement("a");
			  	a.href = "mailto:"+newText;
				var address = document.createTextNode(newText);
				a.appendChild(address);
				alltags[i].replaceChild(a,oldText);
			}
		}
	}
}


/*\------------------------------------------------------------------------
	
	Vertical Scroller
	credits : http://www.quirksmode.org/js/layerscroll.html
	
------------------------------------------------------------------------\*/


var clipTop = 0;
var clipWidth = 260;
var clipBottom = 540;
var topper = 160;
var lyrheight = 0;
var time,amount,theTime,theHeight,DHTML;

function init()
{
	
	DHTML = (document.getElementById || document.all || document.layers)
	if (!DHTML) return;
	var x = new getObj('scroll');
	
	if (document.layers)
	{
		
		lyrheight = x.style.clip.bottom;
		lyrheight += 20;
		x.style.clip.top = clipTop;
		x.style.clip.left = 0;
		x.style.clip.right = clipWidth;
		x.style.clip.bottom = clipBottom;
	}
	else if (document.getElementById || document.all)
	{
		lyrheight = x.obj.offsetHeight;
		x.style.clip = 'rect('+clipTop+'px,'+clipWidth+'px,'+clipBottom+'px,0)';
	}
}

function scrollayer(layername,amt,tim)
{
	if (!DHTML) return;
	thelayer = new getObj(layername);
	if (!thelayer) return;
	amount = amt;
	theTime = tim;
	realscroll();
}

function realscroll()
{
	if (!DHTML) return;
	clipTop += amount;
	clipBottom += amount;
	topper -= amount;
	if (clipTop < 0 || clipBottom > lyrheight)
	{
		clipTop -= amount;
		clipBottom -= amount;
		topper += amount;
		return;
	}
	if (document.getElementById || document.all)
	{
		clipstring = 'rect('+clipTop+'px,'+clipWidth+'px,'+clipBottom+'px,0)';
		thelayer.style.clip = clipstring;
		thelayer.style.top = topper + 'px';
	}
	else if (document.layers)
	{
		thelayer.style.clip.top = clipTop;
		thelayer.style.clip.bottom = clipBottom;
		thelayer.style.top = topper;
	}
	time = setTimeout('realscroll()',theTime);
}

function stopScroll()
{
	if (time) clearTimeout(time);
}

function getObj(name)
{
  if (document.getElementById)
  {
  	this.obj = document.getElementById(name);
	this.style = document.getElementById(name).style;
  }
  else if (document.all)
  {
	this.obj = document.all[name];
	this.style = document.all[name].style;
  }
  else if (document.layers)
  {
   	this.obj = document.layers[name];
   	this.style = document.layers[name];
  }
}