function opacity(id, opacStart, opacEnd, millisec)
{
	//speed for each frame
	var speed = Math.round(millisec / 100);
	var timer = 0;

	//determine the direction for the blending, if start and end are the same nothing happens
	if(opacStart >= opacEnd)
	{
		for(i = opacStart; i >= opacEnd; i--)
		{
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	}
	else if(opacStart < opacEnd)
	{
		for(i = opacStart; i <= opacEnd; i++)
		{
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	}
}

//change the opacity for different browsers
function changeOpac(opacity, id)
{
	var object = document.getElementById(id).style; 
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	object.filter = "alpha(opacity=" + opacity + ")";
}

function currentOpac(id, opacEnd, millisec)
{
	//standard opacity is 100
	var currentOpac = 100;
	
	//if the element has an opacity set, get it
	if(document.getElementById(id).style.opacity < 100)
		currentOpac = document.getElementById(id).style.opacity * 100;

	//call for the function that changes the opacity
	opacity(id, currentOpac, opacEnd, millisec)
}

function loadIframe(iframeName, url)
{
	if(isIE6())
		url = "ie6.php?page=" + url;
	
	if(window.frames[iframeName])
    	window.frames[iframeName].location = url;
}

function replaceIframe(url)
{
	loadIframe("ifrm", url);
	menuMode();
}

function menuMode()
{
	currentOpac("logoImg", 100, 1000);
	currentOpac("backdrop", 0, 1000);
	currentOpac("igf", 100, 1000);
	currentOpac("pax", 100, 1000);
	currentOpac("indiecade", 100, 1000);
}

function subMode()
{
	currentOpac("logoImg", 40, 1000);
	currentOpac("backdrop", 40, 1000);
	currentOpac("igf", 40, 1000);
	currentOpac("pax", 40, 1000);
	currentOpac("indiecade", 40, 1000);
}

function ifNotIE(width)
{
 	if(navigator.userAgent.indexOf("MSIE") == -1)
		document.write('<div style="height:7px"></div>');
}

function checkIE6onMainPage()
{
	if(location.href.indexOf("php") == -1 && isIE6())
		 window.location = "ie6.php?page=index.html";
}

function isIE6()
{
	return navigator.userAgent.indexOf("MSIE 6.0") != -1 || navigator.userAgent.indexOf("MSIE 5.0") != -1;
}

//Dreamweaver stuff

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_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_findObj(n, d) { //v4.01
  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 && d.getElementById) x=d.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];}
}