//TOGGLE LAYER BLOCK - USED FOR SHOWING/HIDING THE VARIOUS BITS OF PAGE
function toggleLayer(whichLayer)
{
	var elem, vis;
	if( document.getElementById ) // this is the way the standards work
		elem = document.getElementById( whichLayer );
	else if( document.all ) // this is the way old msie versions work
		elem = document.all[whichLayer];
	else if( document.layers ) // this is the way nn4 works
		elem = document.layers[whichLayer];
	vis = elem.style;
	// if the style.display value is blank we try to figure it out here
	if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
		vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
	vis.display = (vis.display==''||vis.display=='block')?'none':'block';
}
//END TOGGLE LAYER BLOCK - USED FOR SHOWING/HIDING THE VARIOUS BITS OF PAGE


//COOKIE BLOCK
function set_cookie(name, value, expires, path, domain, secure){
	// set time, it's in milliseconds
	var today = new Date();
	today.setTime( today.getTime() );
	
	/*
	if the expires variable is set, make the correct 
	expires time, the current script below will set 
	it for x number of days, to make it for hours, 
	delete * 24, for minutes, delete * 60 * 24
	*/
	if ( expires )
	{
	expires = expires * 1000 * 60 * 60 * 24;
	}
	var expires_date = new Date( today.getTime() + (expires) );
	
	document.cookie = name + "=" +escape( value ) +
	( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) + 
	( ( path ) ? ";path=" + path : "" ) + 
	( ( domain ) ? ";domain=" + domain : "" ) +
	( ( secure ) ? ";secure" : "" );
}


// this fixes an issue with the old method, ambiguous values 
// with this test document.cookie.indexOf( name + "=" );
function get_cookie(check_name) {
	// first we'll split this cookie up into name/value pairs
	// note: document.cookie only returns name=value, not the other components
	var a_all_cookies = document.cookie.split( ';' );
	var a_temp_cookie = '';
	var cookie_name = '';
	var cookie_value = '';
	var b_cookie_found = false; // set boolean t/f default f
	
	for ( i = 0; i < a_all_cookies.length; i++ )
	{
		// now we'll split apart each name=value pair
		a_temp_cookie = a_all_cookies[i].split( '=' );
		
		
		// and trim left/right whitespace while we're at it
		cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, '');
	
		// if the extracted name matches passed check_name
		if ( cookie_name == check_name )
		{
			b_cookie_found = true;
			// we need to handle case where cookie has no value but exists (no = sign, that is):
			if ( a_temp_cookie.length > 1 )
			{
				cookie_value = unescape( a_temp_cookie[1].replace(/^\s+|\s+$/g, '') );
			}
			// note that in cases where cookie is initialized but no value, null is returned
			return cookie_value;
			break;
		}
		a_temp_cookie = null;
		cookie_name = '';
	}
	if ( !b_cookie_found )
	{
		return null;
	}
}

// this deletes the cookie when called 
function Delete_Cookie( name, path, domain ) { 
	if ( get_cookie( name ) ) 
		document.cookie = name + "=" + ( ( path ) ? ";path=" + path : "") + ( ( domain ) ? ";domain=" + domain : "" ) + ";expires=Thu, 01-Jan-1970 00:00:01 GMT"; 
}

//END COOKIE BLOCK


//FONT RESIZE BLOCK
//config
var defaultfontsize = 100;
var sizeincrement = 5; //%
var currentfontsize = defaultfontsize;
var sizetype = '%'; //...or em, pt, px etc.


function resizefonts(direction) {

	var styleObject = document.getElementById('submastheadwrapper').style;

	if (direction==1){
		currentfontsize = parseInt(currentfontsize) + sizeincrement;
	}
	if (direction==-1){
		currentfontsize = parseInt(currentfontsize) - sizeincrement;
	}
	if (direction==0){
		currentfontsize = parseInt(defaultfontsize);
	}
	//document.cookie = "fontsize=" + currentfontsize;
	set_cookie("fontsize", currentfontsize, 2000, "/", "", "");
	styleObject.fontSize = currentfontsize + sizetype;	
	
}

function init_fontsize() {
	
	currentfontsize = get_cookie("fontsize");
	if (document.cookie.length<1) {
		resizefonts(0);
	}
	document.getElementById('submastheadwrapper').style.fontSize = currentfontsize + sizetype;
}

//END FONT RESIZE BLOCK

//DISABLE/ENABLE STYLESHEET BLOCK
//http://www.quirksmode.org/js/cssdisable.html
function changeCSS(nr)
{
	//Use this for 'Text Only' link
	if (document.getElementsByTagName)
		x = document.getElementsByTagName('link');
	else if (document.all)
		x = document.all.tags('link');
	else
	{
		alert('This script does not work in your browser');
		return;
	}
	nr--;

	//new bit
	if (nr<=0) {
		dis=false
	} else {
		dis=true;
	}
	

	for (var i=0;i<x.length;i++)
	{
		dis = !(i == nr);
		x[i].disabled = dis;
		document.body.style.fontSize='';
	}

}

function settextonly(showall) {
	if ( showall==1 ) {
		set_cookie("textonly", 1, 2000, "/", "", "")
		changeCSS(0);
	} else {
		set_cookie("textonly", 0, 2000, "/", "", "")
		changeCSS(1);
		window.location.reload( true );
	}
}


function init_styles() {
	
	var textonly;
	
	if (get_cookie("textonly")==null) {
		set_cookie("textonly", 0, 2000, "/", "", "");
	} 
	
	textonly = get_cookie("textonly");
	
	//alert(textonly);
	
	if (textonly>=1) {
		changeCSS(0);
	} else {
		Delete_Cookie('textonly', '/', '') ;
	}
}

//END DISABLE/ENABLE STYLESHEET BLOCK



function init_text() {
	
	init_fontsize();
	init_styles();
}