// function for changing stylesheets using
// document.getElementsByTagName("link")
function setLinkedStyleSheet(title) {
	var linkNodes = document.getElementsByTagName("link");
	for ( i = 0; i < linkNodes.length; i++ ) {
		linkNode = linkNodes[i];
		relAttr = linkNode.getAttribute('rel');
		if ( relAttr && ( relAttr.indexOf("style") != -1 ) && linkNode.getAttribute("title") ) {
			linkNode.disabled = true;
			if ( linkNode.getAttribute("title") == title )
				linkNode.disabled = false;
		}
	}
}

// function for changing stylesheets using document.styleSheets
function setStyleSheet(theme, ignoreIcon) {
	for ( i = 0; i < document.styleSheets.length; i++ ) {
		if ( document.styleSheets[i].title ) {
			document.styleSheets[i].disabled = true;
			if ( document.styleSheets[i].title == theme ) {
				document.styleSheets[i].disabled = false;
			}
		}
	}
	setCookie('style', theme, 60*60*24*356, '/', '.imagin8.com', false);
	
	if ( !ignoreIcon ) {
		highlightStyleIcon(theme);
	}
}
  
function setCookie( 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" : "" );
}

function getCookie( name ) {
	var start = document.cookie.indexOf( name + "=" );
	var len = start + name.length + 1;
	if ( ( !start ) &&	( name != document.cookie.substring( 0, name.length ) ) )	{
		return null;
	}
	if ( start == -1 ) return null;
	var end = document.cookie.indexOf( ";", len );
	if ( end == -1 ) end = document.cookie.length;
	return unescape( document.cookie.substring( len, end ) );
}

function highlightStyleIcon(theme) {
	if ( theme == 'css_xlarge' ) {
		document.getElementById('css_sel_xlarge').className = 'active';
		document.getElementById('css_sel_normal').className = '';
		document.getElementById('css_sel_large').className = '';
	} else if ( theme == 'css_large' ) {
		document.getElementById('css_sel_large').className = 'active';
		document.getElementById('css_sel_normal').className = '';
		document.getElementById('css_sel_xlarge').className = '';
	} else {
		document.getElementById('css_sel_normal').className = 'active';
		document.getElementById('css_sel_large').className = '';
		document.getElementById('css_sel_xlarge').className = '';
	}
}