/*
dropdown menus based on son of suckerfish.

Beefed up a little by Grae to allow for multiple suckerfish drop downs within the one page, from one linked javascript.
Checks to ensure presence of element by id before attaching function.
*/

/* #nav dropdown */
function dropDownNav()
{
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++)
	{
		sfEls[i].onmouseover=function()
		{
			this.className+=" sfhover";
			this.style.zIndex=200;
		}
		sfEls[i].onmouseout=function()
		{
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}

/* #navFeature dropdown */
function dropDownNavFeature()
{
	var sfEls = document.getElementById("navFeature").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++)
	{
		sfEls[i].onmouseover=function()
		{
			this.className+=" sfhover";
			this.style.zIndex=100;
		}
		sfEls[i].onmouseout=function()
		{
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}

/* #navGallery dropdown */
function dropDownNavGallery()
{
	var sfEls = document.getElementById("navGallery").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++)
	{
		sfEls[i].onmouseover=function()
		{
			this.className+=" sfhover";
			this.style.zIndex=100;
		}
		sfEls[i].onmouseout=function()
		{
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}

/* Check for elements to attach drop down functions to */
function elementChecker()
{
	/* check for main nav */
	if (document.getElementById('nav') != null)
	{
		dropDownNav();
	}

	/* check for feature navigation */
	if (document.getElementById('navFeature') != null)
	{
		dropDownNavFeature();
	}

	/* check for gallery navigation */
	if (document.getElementById('navGallery') != null)
	{
		dropDownNavGallery();
	}
}

/* onload run element checker function */
if (window.attachEvent)
{
	window.attachEvent("onload", elementChecker);
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function MM_displayStatusMsg(msgStr) { //v1.0
  status=msgStr;
  document.MM_returnValue = true;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}


function popupWindow(popupLocation, windowName, popupWidth, popupHeight, statusBarOn) {
	var heightspeed = 15; 	// vertical speed
	var widthspeed 	= 15;  	// horizontal speed
	var leftdist 	= (screen.width - popupWidth) / 2;    	// distance to left edge of window
	var topdist 	= (screen.height - popupHeight) / 2;   	// distance to top edge of window
	if (document.all) {
		if (statusBarOn) {
			var popUpWin = window.open("", windowName, "left=" + leftdist + ",top=" + topdist + ",width=4,height=4,scrollbars=yes,resizable=yes,status=yes");
		} else { 
			var popUpWin = window.open("", windowName, "left=" + leftdist + ",top=" + topdist + ",width=4,height=4,scrollbars=yes,resizable=no,status=no");
		}
		for (sizeheight = 1; sizeheight < popupHeight; sizeheight += heightspeed) {
			popUpWin.resizeTo("1", sizeheight);
		}
		for (sizewidth = 1; sizewidth < popupWidth; sizewidth += widthspeed) {
			popUpWin.resizeTo(sizewidth, sizeheight);
		}	
		popUpWin.resizeTo(popupWidth, popupHeight);
		popUpWin.location = popupLocation;
	} else {
		var popUpWin = window.open(popupLocation, windowName, "left=" + leftdist + ",top=" + topdist + ",width=" + popupWidth + ",height=" + popupHeight + ",scrollbars=no");
	}
}


function swapNavState(navObj, statusMessage) {
	var startPos = navObj.className.length - 3;
	var endPos = navObj.className.length;
	var navClassName = navObj.className.toString();
	var navClass = navClassName.substring(0, startPos);
	var navState = navClassName.substring(startPos, endPos);
	if (navState == 'Off') { navObj.className = navClass + 'Ovr'; } else { navObj.className = navClass + 'Off'; }
	window.status = statusMessage;
}

function navGoTo(sendTo) {
	parent.document.location = sendTo;
}


function addPopUp(Max) {
	Rnd = Random(Max);
	if (Rnd == 1) {
		MM_openBrWindow('../html/artunionadvert.htm','advertWindow','resizable=no,width=150,height=150')
	}
}


function externalJump(form) {
	var indexform=document.navigation.clubs.selectedIndex;
	var locationtojumpto=document.navigation.clubs.options[indexform].value;
	if (locationtojumpto != '#') window.location=locationtojumpto;
	document.navigation.clubs.selectedIndex = 0;
}

function changeFormAction(formObj, formActionStr) {
	formObj.action = formActionStr;
}

function swapNavState(navObj, statusMessage) {
	var startPos = navObj.className.length - 3;
	var endPos = navObj.className.length;
	var navClassName = navObj.className.toString();
	var navClass = navClassName.substring(0, startPos);
	var navState = navClassName.substring(startPos, endPos);
	if (navState == 'Off') { navObj.className = navClass + 'Ovr'; } else { navObj.className = navClass + 'Off'; }
	window.status = statusMessage;
}