function QueryString(key)
{
	var value = null;
	for (var i=0;i<QueryString.keys.length;i++)
	{
		if (QueryString.keys[i]==key)
		{
			value = QueryString.values[i];
			break;
		}
	}
	return value;
}
QueryString.keys = new Array();
QueryString.values = new Array();

function getQ(){
	var query = window.location.search.substring(1);
	var pairs = query.split("&");
	
	for (var i=0;i<pairs.length;i++){
		var pos = pairs[i].indexOf('=');
		if (pos >= 0){
			var argname = pairs[i].substring(0,pos);
			var value = pairs[i].substring(pos+1);
			QueryString.keys[QueryString.keys.length] = argname;
			QueryString.values[QueryString.values.length] = value;		
		}
	}
}

getQ();
	
		var d = new Date();
		if(QueryString('VisibleDate')){
			var curDate=QueryString('VisibleDate');
			var dateArray = curDate.split("/");
			var curMonth = dateArray[0];
			var curDay = dateArray[1];
			var curYear = dateArray[2];
		}else{
			var curMonth = d.getMonth() + 1;
			var curDay = d.getDate();
			var curYear = d.getFullYear();
		}
	
	function nextYear(){
		dayAndMonth = curMonth + "/" + curDay;
		nextYear = parseInt(curYear) + 1;
		window.location = '?VisibleDate=' + dayAndMonth + "/" + nextYear;
	}
	
	function prevYear(){
		dayAndMonth = curMonth + "/" + curDay;
		nextYear = parseInt(curYear) - 1;
		window.location = '?VisibleDate=' + dayAndMonth + "/" + nextYear;
	}
	
	function writeYearNav(){
		
		if(QueryString('VisibleDate')){
			var thisYear = d.getFullYear();
			if(curYear > thisYear){
				document.write(' <img class="leftArrow" onclick="prevYear()" src="/images/leftArrow.png" /> ' + curYear + ' <img onclick="nextYear()" class="rightArrow" src="/images/rightArrow.png"/>');
			}else{
				document.write(curYear + ' <img onclick="nextYear()" class="rightArrow" src="/images/rightArrow.png"/>');
			}
		}else{
			document.write(curYear + ' <img onclick="nextYear()" class="rightArrow" src="/images/rightArrow.png"/>');
		}
		
	}