var site_root = '/';
var cursor_type = (document.all) ? 'hand' : 'pointer';
var content_div;
var banner_div;
var body_tag;

//	Browser detection
var w3c = (document.getElementById) ? true : false;
var ie = (document.all && !w3c) ? true : false;


function init () {
	content_div = document.getElementById('content');
	banner_div = document.getElementById('banner');
	body_tag = document.getElementsByTagName('BODY')[0];
	
	
	var font_size = getFontCookie();
	if (font_size != null) {
		setFontClassName(font_size);
	}
	
	
	createFontResizer();
}

if (w3c) { 	
	document.write('<style type="text/css">#content { visibility: hidden; }</style>');
	window.onload=init;
	}



function showContentDiv() {
	if (content_div) {
		content_div.style.visibility = 'visible';
	}	
}


function createFontResizer() {
	var fontPrint_ul = document.getElementById('fontPrintLinks');
	var size_imgs = new Array (3);
	var fontResizer_li;
	var default_size = 1;
	
	if (fontPrint_ul) {
		fontResizer_li = document.createElement('LI');
		fontResizer_li.id = 'fontResizer';
		
		//fontsize_img = document.createElement('IMG');
		//fontsize_img.src = site_root + 'images/font_size.gif';
		//fontResizer_li.appendChild(fontsize_img);
		
		fontsize_text = document.createTextNode('Font Size: ');
		fontResizer_li.appendChild(fontsize_text);
		
		for (var aa=0; aa<size_imgs.length; aa++) {
			size_imgs[aa] = document.createElement('IMG');
			if (aa == 0) {
				// alt for small
				size_imgs[aa].alt = 'Font Size Small';
				size_imgs[aa].title = 'Font Size Small';
			} else if (aa == 1) {
				// alt for medium
				size_imgs[aa].alt = 'Font Size Medium';
				size_imgs[aa].title = 'Font Size Medium';
			} else if (aa == 2) {
				// alt for large
				size_imgs[aa].alt = 'Font Size Large';
				size_imgs[aa].title = 'Font Size Large';
			}

			size_imgs[aa].assoc_num = aa+1;
			if (getFontCookie() == ('larger'+size_imgs[aa].assoc_num) || (getFontCookie() == null && size_imgs[aa].assoc_num == default_size)) {
				size_imgs[aa].src = 'images/font_size_' + size_imgs[aa].assoc_num + '_sel.gif ';
			} else {
				size_imgs[aa].src = 'images/font_size_' + size_imgs[aa].assoc_num + '.gif';
			}
			size_imgs[aa].assoc_classname = 'larger' + size_imgs[aa].assoc_num;
			size_imgs[aa].onclick = function () {
				setFontClassName(this.assoc_classname); 
				setFontCookie(this.assoc_classname);
				for (var bb=0; bb<size_imgs.length; bb++) {
					size_imgs[bb].src = 'images/font_size_' + (bb+1) + '.gif';
				}
				this.src = 'images/font_size_' + this.assoc_num + '_sel.gif';
			}
			size_imgs[aa].onmouseover = function () {
				this.style.cursor = cursor_type;
			}
			fontResizer_li.appendChild(size_imgs[aa]);
		}
		fontPrint_ul.insertBefore(fontResizer_li,fontPrint_ul.getElementsByTagName('LI')[0]);
	}
	showContentDiv();
}




function setFontClassName(new_font_class) {
	var current_body_classname = body_tag.className;
	if (current_body_classname.length > 0) { // Then there is a class on the body tag
		var replaceable = false;
		for (var cc=1; cc<4; cc++) {
			var class_search = 'larger'+cc;
			if (current_body_classname.indexOf(class_search) != -1) {
				replaceable = true;
				body_tag.className = current_body_classname.replace(class_search,new_font_class);
				break;
			}
		}
		if (replaceable == false) { // body has a classname, add to it
			body_tag.className = current_body_classname+' '+new_font_class;
		}
	} else {
		body_tag.className = new_font_class;
	}
}



function setFontCookie(class_name) {
	
	//format expiry date
	font_date = new Date();
	font_date.setTime(font_date.getTime() + ( 365 *24*60*60*1000));

	document.cookie = 'fontSize=' + class_name
		+ '; expires=' + font_date.toGMTString() 
		+ '; path=/';
}


function getFontCookie() {
	font_cookie = null;	
	
	if (document.cookie && document.cookie.indexOf('fontSize')!=-1) {
		font_cookie = document.cookie.split('fontSize=');
		font_cookie = font_cookie[1].split(';');
		font_cookie = font_cookie[0];
	}
	//alert(font_cookie);
	
	return font_cookie;
}



/* From print.js */
if(self.opener) { 
	window.onload=opener.appSty; 
}

function winBuild() { 
	newWin=window.open(window.location,'','height=800,width=800,toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,copyhistory=yes,resizable=yes'); 
} 

function appSty() { 
	var win_style=newWin.document.createElement('link'); 
	win_style.href="niams_cat.css"; 
	win_style.rel="stylesheet"; 
	win_style.type="text/css"; 
	newWin.document.getElementsByTagName('head')[0].appendChild(win_style); 
	newWin.focus(); 
}