(function($) { 
   
	function calendarWidget(el, params) { 
		
		var now   = new Date();
		var thismonth = now.getMonth();
		var thisyear = now.getYear();
		if (thisyear < 1900) {
			thisyear  = thisyear + 1900;
		}
		
		var opts = {
			month: thismonth,
			year: thisyear
		};
		
		$.extend(opts, params);
		
		var monthNames = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
		var dayNames = ['Su', 'M', 'Tu', 'W', 'Th', 'F', 'Sa'];
		month = i = parseInt(opts.month);
		year = parseInt(opts.year);
		var m = 0;
		var table = '';
		
			// next month
			if (month == 11) {
				var next_month = '<a href="#" onclick="javascript:$(\'#calendar\').empty().calendarWidget({month: ' + 0 + ', year: ' + (year + 1) + '});return false;">' + monthNames[0] + ' ' + (year + 1) + ' &gt;</a>';
			} else {
				var next_month = '<a href="#" onclick="javascript:$(\'#calendar\').empty().calendarWidget({month: ' + (month + 1) + ', year: ' + (year) + '});return false;">' + monthNames[month + 1] + ' ' + (year) + ' &gt;</a>';
			}
				
			// previous month
			if (month == 0) {
				var prev_month = '<a href="#" onclick="javascript:$(\'#calendar\').empty().calendarWidget({month: 11, year: '+(year - 1)+'});return false;">&lt; ' + monthNames[11] + ' ' + (year - 1) + '</a>';
			} else {
				var prev_month = '<a href="#" onclick="javascript:$(\'#calendar\').empty().calendarWidget({month: ' + (month - 1) + ', year: ' + (year) + '});return false;">&lt; ' + monthNames[month - 1] + ' ' + (year) + '</a>';
			}		
				
			table += ('<h3 id="current-month">'+monthNames[month]+' '+year+'</h3>');
			// uncomment the following lines if you'd like to display calendar month based on 'month' and 'view' paramaters from the URL
			$('div.nav-prev').html(prev_month);
			$('div.nav-next').html(next_month);
			table += ('<table class="calendar-month " ' +'id="calendar-month'+i+' " cellspacing="0">');	
		
			table += '<tr>';
			
			for (d=0; d<7; d++) {
				table += '<th class="weekday">' + dayNames[d] + '</th>';
			}
			
			table += '</tr>';
		
			var days = getDaysInMonth(month,year);
            var firstDayDate=new Date(year,month,1);
            var firstDay=firstDayDate.getDay();
			
			var prev_days = getDaysInMonth(month,year);
            var firstDayDate=new Date(year,month,1);
            var firstDay=firstDayDate.getDay();
			
			var prev_m = month == 0 ? 11 : month-1;
			var prev_y = prev_m == 11 ? year - 1 : year;
			var prev_days = getDaysInMonth(prev_m, prev_y);
			firstDay = (firstDay == 0 && firstDayDate) ? 7 : firstDay;
	
			var i = 0;
            for (j=0;j<42;j++){
			  
              if ((j<firstDay)){
                table += ('<td class="other-month"><span class="day">'+ (prev_days-firstDay+j+1) +'</span></td>');
			  } else if ((j>=firstDay+getDaysInMonth(month,year))) {
				i = i+1;
                table += ('<td class="other-month"><span class="day">'+ i +'</span></td>');			 
              }else{
                table += ('<td class="current-month day'+(j-firstDay+1)+'"><span class="day">'+(j-firstDay+1)+'</span></td>');
              }
              if (j%7==6)  table += ('</tr>');
            }

            table += ('</table>');

		el.html(table);
		fillDays(month+1, year);
	}
	function fillDays(month, year) {
		for (var i in events) {
			if ((events[i][0] == year) && (events[i][1] == month)) {
				var dayevent = $("td.day"+events[i][2]);
				if (dayevent.find(".calOver").length == 0) {
					if (events[i][5] != "") {
						dayevent.addClass("hasEvent").append('<div class="calOver"><b>'+events[i][3]+'</b><br /><span class="time">'+events[i][5]+'</span><br />'+events[i][4]+'</div>');
					} else {
						dayevent.addClass("hasEvent").append('<div class="calOver"><b>'+events[i][3]+'</b><br />'+events[i][4]+'</div>');
					}
				} else {
					if (events[i][5] != "") {
						dayevent.find(".calOver").append('<hr><b>'+events[i][3]+'</b><br /><span class="time">'+events[i][5]+'</span><br />'+events[i][4]);
					} else {
						dayevent.find(".calOver").append('<hr><b>'+events[i][3]+'</b><br />'+events[i][4]);
					}
				}
				dayevent.hover(
					function() {
						$(this).find(".calOver").show();						
					}, function() {
						$(this).find(".calOver").hide();
					});
			}
		}
		$(".calOver").hide();
		$(".middlecontent > div.monthevent:visible").hide();
		$("."+year+"-"+month).show();
	}
	function getDaysInMonth(month,year)  {
		var daysInMonth=[31,28,31,30,31,30,31,31,30,31,30,31];
		if ((month==1)&&(year%4==0)&&((year%100!=0)||(year%400==0))){
		  return 29;
		}else{
		  return daysInMonth[month];
		}
	}
	
	
	// jQuery plugin initialisation
	$.fn.calendarWidget = function(params) {    
		calendarWidget(this, params);		
		return this; 
	}; 

})(jQuery);