/*	Page Layout Behaviours by Chris Constandinou, chris@constantology.com, please give me credit if you use this, good karma to you regardless...	*/

//	You don't need to touch this...
	var ieWidthStyle = "narrow";
	
// run function on load and resize
	if ( got.dom ) window.onload = init;
	if ( got.dom && got.ie && widthStyle == "liquid") window.onresize = resize;
	
//	All browser sniffing is limited to this init() function only.
	function init()
	{
		var regex = /\s*/g;
		var url = window.location.href;
		url = url.substring( url.lastIndexOf( "/" ) + 1, url.lastIndexOf( "." ) );
		
//	declare objects
//	Hack for Netscape 6 & 7 which won't create an array object if you use getElementsByTagName 
		if ( got.ns ) var oBody = document.getElementsByTagName( "body" );
		else var oBody = document.getElementsByTagName( "body" )[0];
		var oMasterWpr = document.getElementById( "master-wpr" );
		var oTitle = document.getElementById( "title" );
		var oHeading = document.getElementById( "heading" );
		var oNavigation = document.getElementById( "navigation" );
		var oCopy = document.getElementById( "copy" );
		var oTable = document.getElementsByTagName( "table" );
		var oQuote = document.getElementById( "q" );
		var oRight = document.getElementById( "right" );
		var oFacts = document.getElementById( "facts" );
		
		if ( got.ie && widthStyle == "liquid" ) resize();
		else oBody.className = alignStyle + " " + widthStyle;
		
		if ( oRight.innerHTML == "" ) columnStyle = "l-c";
		
		oMasterWpr.className = columnStyle;
		
//	Change text heading for image heading
		oTitle.getElementsByTagName( "a" )[0].innerHTML += '<img alt="' + oTitle.getElementsByTagName( "span" )[0].innerHTML + '" src="media/title/' + oTitle.getElementsByTagName( "span" )[0].innerHTML.toLowerCase().replace( regex, "" ) + '.gif" />';
		oHeading.getElementsByTagName( "h1" )[0].innerHTML += '<img alt="' + oHeading.getElementsByTagName( "span" )[0].innerHTML + '" src="media/title/' + url + '.gif" />';
		
		if ( oNavigation != null )
		{
			expandNav( oNavigation, url );
			highlightNav( oNavigation, url );
		}
		if ( oTable != null ) formatDataTables( oTable );
		if ( oQuote != null ) createQuote( oQuote, oCopy );
		if ( oRight != null && !got.ns )
		{
			addMediaViewer( oRight );
			makePopUps( oRight );
		}
		if ( oFacts != null )
		{
			oFacts.className = "hide";
			if ( !got.ns ) createDidyouknow( oFacts, oRight );
		}
	}
	
	function resize()
	{
//	declare objects
		var oBody = document.getElementsByTagName( "body" )[0];
		
		oBody.clientWidth < 1024 ? ieWidthStyle = "narrow" : ieWidthStyle = "wide";
		oBody.className = alignStyle + " " + ieWidthStyle;
	}
	
//	JavaScript Functions
	function openWindow( url, winName, winAttr )
	{
		var popup = window.open( url, winName, winAttr );
	}
	
//	DOM Mutator methods
	function expandNav( obj, url )
	{
		var oItem = obj.getElementsByTagName( "li" );
		
		for ( i = 0 ; i < oItem.length ; i++ )
		{
			if ( oItem[i].getElementsByTagName( "a" )[0].href.indexOf( url + ".shtml" ) > -1 )
			{
				if ( oItem[i].getElementsByTagName( "ul" )[0] != null ) oItem[i].getElementsByTagName( "ul" )[0].style.display = "block";
				else oItem[i].parentNode.style.display = "block";
			}
		}
	}
	
	function highlightNav( obj, url )
	{
		var oAnchor = obj.getElementsByTagName( "a" );
		
		for ( i = 0 ; i < oAnchor.length ; i++ )
			if ( oAnchor[i].href.indexOf( url + ".shtml" ) > -1 && oAnchor[i].href.indexOf( "/pub/iag/index.shtml" ) < 0 )
				oAnchor[i].className = "selected";
	}
	
	function formatDataTables( obj )
	{
//	make all tables with class="data-table" have interlaced rows
		if ( obj != null )
		{
			for ( i = 0 ; i < obj.length ; i++ )
			{
//	if the table is well formatted and has a tbody tag then do this
				if ( obj[i].className.indexOf( "data-table" ) > -1 )
				{
					tbodyTemp = obj[i].getElementsByTagName( "tbody" );
					if ( tbodyTemp != null )
					{
						for ( j = 0 ; j < tbodyTemp.length ; j++ )
						{
							trTemp = tbodyTemp[j].getElementsByTagName( "tr" );
							for ( k = 0 ; k < trTemp.length ; k++ ) if ( k % 2 != 0 ) trTemp[k].className += "even";
						}
					}
//	if this the table is not well formated do this
					else
					{
						trTemp = obj[i].getElementsByTagName( "tr" );
//	starts at (j = 1) because I'm assuming that the first row is a table header (th) tag 
						for ( j = 1 ; j < trTemp.length ; j++ ) if ( j % 2 == 0 ) trTemp[j].className += "even";
					}
				}
			}
		}
	}
	
	function createQuote( oQuote, oCopy )
	{
		var elQuote = document.createElement( "div" );
		elQuote.id = "quote";
		elQuote.innerHTML = "<p>" + oQuote.innerHTML + "</p>";
		
		var oParagraph = oCopy.getElementsByTagName( "p" );
		
		if ( oParagraph.length > 3 )
		{
			var i = parseInt( oParagraph.length / 3 );
			
			if ( oParagraph[i].className == "top" ) i++;
			
			if ( i > 1 ) oCopy.insertBefore( elQuote, oParagraph[i] );
			else if ( i == 1 ) oCopy.insertBefore( elQuote, oParagraph[2] );
			else oCopy.insertBefore( elQuote, oCopy.firstChild );
		}
		else oCopy.insertBefore( elQuote, oCopy.firstChild );
	}
	
	function addMediaViewer( obj )
	{
		var anchorList = obj.getElementsByTagName( "a" );
		
		var regex = /media\/.*\.(gif|jpg|png)$/i;
		
		for ( var i = 0 ; i < anchorList.length ; i++ ) if ( regex.test( anchorList[i].href ) ) anchorList[i].href = "mediaviewer.html?media=" + anchorList[i].href + "?title=" + anchorList[i].title;
	}
	
	var imagePopupAttr = "location=0,menubar=0,personalbar=0,resizable=1,scrollbars=1,status=0,titlebar=0,toolbar=0,height=500,width=700";
	
	function makePopUps( obj )
	{
		var anchorList = obj.getElementsByTagName( "a" );
		var aRel, aHref;
		
		for ( var i = 0 ; i < anchorList.length ; i++ )
		{
			if ( anchorList[i].rel.indexOf( "popup" ) > -1 )
			{
				aRel = anchorList[i].rel.split( "|" );
				
				if ( anchorList[i].rel.indexOf( "image" ) > -1 ) anchorList[i].setAttribute( "href", "javascript:openWindow( '" + anchorList[i].href + "','" + aRel[1] + "','" + imagePopupAttr + "' );" );
				else anchorList[i].setAttribute( "href", "javascript:openWindow( '" + anchorList[i].href + "','" + aRel[1] + "','" + aRel[2] + "' );" );
				
				anchorList[i].target = "";
			}
		}
	}