hi=false;

//read font-size cookie

function largeFont() {
	document.getElementById('content').className = "large-font";
	createCookie("lge-font-size","large",10);
}

function mediumFont() {
	document.getElementById('content').className = "medium-font";	
	createCookie("lge-font-size","medium",10);
}

function smallFont() {
	document.getElementById('content').className = "small-font";
	createCookie("lge-font-size","small",10);
}

function writeControls() {
	document.write ('<div id="font-size">\n')
	document.write ('<span>Font Size:</span> <a class="small-font" title="Small font size" href="javascript:smallFont()">A</a>\n')
	document.write ('<a class="medium-font" title="Medium font size" href="javascript:mediumFont()">A</a>\n')
	document.write ('<a class="large-font" title="Large font size" href="javascript:largeFont()">A</a>\n')
	document.write ('</div>\n')
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}


function getElementsByClassName(oElm, strTagName, strClassName){
	var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
	var arrReturnElements = new Array();
	strClassName = strClassName.replace(/\-/g, "\\-");
	var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
	var oElement;
	for(var i=0; i<arrElements.length; i++){
		oElement = arrElements[i];
		if(oRegExp.test(oElement.className)){
			arrReturnElements.push(oElement);
		}
	}
	return (arrReturnElements)
}

function mask(x) {
	for(a=0;a<=x.length-1;a++) {
		
		//find out out height and width (this will determine which mask to use)
		xH = x[a].height;	
		xW = x[a].width;
		
		//create our mask element
		xImg = document.createElement("img")
		xImg.setAttribute("src", "site-lge2/images/f/mask" + xH + "x" + xW + ".png");
		xImg.setAttribute("class","mask"); 
		xImg.setAttribute("alt",'');
		xImg.setAttribute("height",xH);
		xImg.setAttribute("width",xW);
		
		//append the image next to our base image - css should sort out the rest
		x[a].parentNode.appendChild(xImg);
	}
}

function elasticiseImages() {
	
	if(window.ie) {
		// base font size is 75%
		baseSize = ".75";
		
		imgArr = new Array();
		
		var list = $$('#header img', '#middle-col img');	
		
		list.some(function(element, index) {
			imgArr[index] = element;
		});
		
		var list = $$('#header input', '#middle-col input');	
		
		list.some(function(element, index) {
			if(element.type=="image") imgArr.push(element);
		});
		
		for(a=0;a<=imgArr.length-1;a++) {
			
			el = imgArr[a];
		
			el.style.height = el.height / 16 / baseSize + "em";
			
			el.style.width = el.width / 16 / baseSize + "em";		
		
		}
	}
	
}

window.addEvent('domready', function() {
				
	// are there masked elements on this page?		
	masks = getElementsByClassName(document.getElementById('middle-col'), 'img', 'masked');
	if(masks.length>0) mask(masks);
	
	//make images scalable by converting the height & width to ems
	//if(!window.ie7)elasticiseImages();
	
	//add print button
	var list = $$('li.print');
	list.some(function(element, index) {
		element.innerHTML='<a href="javascript:print()">Print this page</a>'
	});
			
	//form focus	
	var list = $$('input.text', 'textarea.text');		
	list.some(function(element, index) { 
		element.addEvent('focus', function(){
			element.setStyle('background-image', 'url(site-lge2/images/f/input-bg-focus.gif)');
		});
		element.addEvent('blur', function(){
			element.setStyle('background-image', 'url(site-lge2/images/f/input-bg.jpg)');
		});
	});
	
	//main-nav hover for IE6
	
	if(window.ie6) {
		var list = $$('#main-nav li');		
		list.some(function(element, index) { 
			element.addEvent('mouseenter', function(){
				element.className = 'active'
			});
			element.addEvent('mouseleave', function(){
				element.className = ''
			});
		});	
	}
			
	// implement motools LH Navigation	
	if(!hi) {
		var list = $$('#left-col li a');
		list.some(function(element, index) {
		 
			var fx = new Fx.Styles(element, {duration:200, wait:false});
			
			var eBG = element.getStyle('background-color');
			eBG = eBG.substring(1, eBG.length);
					
			activeClass = element.getParent().className.indexOf('activeSection') > -1; 
			parentClass = element.getParent().className.indexOf('parent') > -1 ;
			
			if(!parentClass && !activeClass) {
		 
				element.addEvent('mouseenter', function(){
					
					fx.start({
						'background-color': '#D5DCE9',
						'padding-right': '2px'	
					});			
				});
			 
				element.addEvent('mouseleave', function(){
						
					fx.start({
						'background-color': eval("'" + eBG + "'"),
						'padding-right': '5px'
					});
					
		
				});
			
			}
		 
		});	
	
	}
	
}); 

function clearThis(x) {
	if(x==y.value)y.value=''
}