// JavaScript Document
function switchLegs(num){

	tags = document.getElementsByTagName('div');
	for(i = 0; i < tags.length; i++){
		if(tags[i].className.indexOf('legs') > -1)
			tags[i].style.display = 'none';
		if(tags[i].className.indexOf('legs' + num + ' z') > 0){
			tags[i].style.display = 'block';
			createCookie('legs', num, 7);
		}
	}
	
}

function sl(){

	ck = readCookie('legs');

	if(ck == null)
		ck = 2;
	tags = document.getElementsByTagName('div');
	for(i = 0; i < tags.length; i++){
		if(tags[i].className.indexOf('legs' + ck + ' z') > 0)
			tags[i].style.display = 'block';
	}
	setTimeout("fadeIn();", 5000);
	
}
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;
}
var started = false;
function fadeIn(){
	
	if(!started)
		opacity('fadeInner', 0, 80, 1000);
}
function forceFade(){
	if(!started){
		opacity('fadeInner', 0, 80, 1000);
	}
}
function opacity(id, opacStart, opacEnd, millisec) {
	document.getElementById('fader').style.border = 'none';
	document.getElementById('fader').style.padding = '1px';
	started = true;
	//speed for each frame
	var speed = Math.round(millisec / 100);
	var timer = 0;

	//determine the direction for the blending, if start and end are the same nothing happens
	if(opacStart > opacEnd) {
		for(i = opacStart; i >= opacEnd; i--) {
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	} else if(opacStart < opacEnd) {
		for(i = opacStart; i <= opacEnd; i++)
			{
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	}
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
	var object = document.getElementById(id).style; 
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	object.filter = "alpha(opacity=" + opacity + ")";
}

function shiftOpacity(id, millisec) {
	//if an element is invisible, make it visible, else make it ivisible
	if(document.getElementById(id).style.opacity == 0) {
		opacity(id, 0, 100, millisec);
	} else {
		opacity(id, 100, 0, millisec);
	}
}

function currentOpac(id, opacEnd, millisec) {
	//standard opacity is 100
	var currentOpac = 100;
	
	//if the element has an opacity set, get it
	if(document.getElementById(id).style.opacity < 100) {
		currentOpac = document.getElementById(id).style.opacity * 100;
	}

	//call for the function that changes the opacity
	opacity(id, currentOpac, opacEnd, millisec)
}