var pix_sep ="|";
function daBoxes(){
	var s = getCookie("pix_cookie");
	if (s==null){return;}	
	else{
		var valArray = s.split(pix_sep);
		var i=0;
		var len=document.picks.length;
		var aLen = valArray.length;
		for(i; i<len; i++){
			var j=0;
			for (j; j<aLen; j++){
				if (document.picks[i].value == valArray[j]){
					document.picks[i].checked = true;
				}
			}
		}
	}
}

function clearNotes(){
	if (confirm("Press OK to clear saved notes")){
		DeleteCookie("pix_cookie");
		var i=0;
		var len=document.picks.length;
		for(i; i<len; i++){
			document.picks[i].checked=false;
		}
	}
}

function DeleteCookie (name) {  
var exp = new Date();  
exp.setTime (exp.getTime() - 1);  
var cval = getCookie (name);  
document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}
	
function updatePicks(form, chkbox){
	var pix= getCookie("pix_cookie");
	if (pix==null){
		pix="";
	}
	var newpix = "";
	var len = pix.length;
	var val = eval("document.picks." + chkbox + ".value");
	var checked = eval("document.picks." + chkbox + ".checked");
	if ((len == 0) || (checked==true)){
		newpix = addToPicks(pix, val);
	}
	else if(checked==false){
		newpix = removeFromPicks(pix, val);
	}
	SetCookie("pix_cookie", newpix);
}
function removeFromPicks(picStr, val){
	var valArray = picStr.split(pix_sep);
	var retArray = new Array();
	var len = valArray.length;
	retArray.length = len-1;
	var i=0;
	var j=-1;
	for(i; i<len; i++){
		if( valArray[i] != val){
			retArray[++j] = valArray[i];
		}
	}
	return retArray.join(pix_sep);
}
function addToPicks(picStr, val){
	var valArray;
	var retArray;
	if (picStr.length > 0){
		valArray = picStr.split(pix_sep);
	}
	else{
		retArray = new Array(val);
		return retArray.join(pix_sep);
	}
	retArray = new Array();
	retArray.length = valArray.length + 1;
	var i=0;
	var len= valArray.length;
	for (i; i<len; i++){
		retArray[i] = valArray[i];
	}
	retArray[len] = val;
	return retArray.join(pix_sep);
}

function SetCookie (name, value) {  
	var argv = SetCookie.arguments;  
	var argc = SetCookie.arguments.length;  
	var expires = (argc > 2) ? argv[2] : null; 
	var path = (argc > 3) ? argv[3] : null;  
	var domain = (argc > 4) ? argv[4] : null;  
	var secure = (argc > 5) ? argv[5] : false;  
	document.cookie = name + "=" + escape (value) + 
	((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 
	((path == null) ? "" : ("; path=" + path)) +  
	((domain == null) ? "" : ("; domain=" + domain)) +    
	((secure == true) ? "; secure" : "");
}
function getCookie (name) {  
	var arg = name + "=";  
	var alen = arg.length;  
	var clen = document.cookie.length;  
	var i = 0;  
	while (i < clen) {    
		var j = i + alen;    
		if (document.cookie.substring(i, j) == arg)      
			return getCookieVal (j);    
		i = document.cookie.indexOf(" ", i) + 1;    
		if (i == 0) break;   
	}  
	return null;
}

function getCookieVal (offset) {  
	var endstr = document.cookie.indexOf (";", offset);  
	if (endstr == -1)    
		endstr = document.cookie.length;  
	return unescape(document.cookie.substring(offset, endstr));
}