function ccal(config)
{this.init(config);}
ccal.prototype={get_date:function(date)
{return{month:date.getMonth(),year:date.getFullYear(),day:date.getDate(),wday:(date.getDay()==0)?7:date.getDay(),days:this.get_days(date.getMonth(),date.getFullYear()),first_wday:new Date(date.getFullYear(),date.getMonth(),1).getDay()}},get_months:function(date)
{this.current_month=this.get_date(date);this.previous_month=this.get_date(new Date(this.current_month.month==0?this.current_month.year- 1:this.current_month.year,this.current_month.month==0?11:this.current_month.month- 1));this.next_month=this.get_date(new Date(this.current_month.month==11?this.current_month.year+ 1:this.current_month.year,this.current_month.month==11?0:this.current_month.month+ 1));},handle_events:function(e)
{var elm=$(e.target);if(elm.attr('id')==this.button_id){if(elm.hasClass('cm-combo-on')){this.parse_date($('#'+ this.date_id).val());}
return true;}
if(elm.parents('#'+this.id).length){if(elm.hasClass('cm-months-list')){this.choose(this.current_month.day,elm.attr('rev'));}else if(elm.hasClass('cm-previous-month')){this.choose(this.current_month.day,'-');}else if(elm.hasClass('cm-next-month')){this.choose(this.current_month.day,'+');}else if(elm.hasClass('cm-previous-days')){this.choose(elm.text(),'-');}else if(elm.hasClass('cm-next-days')){this.choose(elm.text(),'+');}else if(elm.hasClass('cm-current-days')){this.choose(elm.text(),this.current_month.month,true);}}},init:function(config)
{for(var k in config){this[k]=config[k];}
var obj=this;$(document).ready(function(){$('#'+ obj.id).appendTo(document.body);});$(document).bind('mouseup',function(e){obj.handle_events(e);return false;});},parse_date:function(date)
{var a=date.split('/');var m,d,y;if(a.length==3){m=this.month_first?a[0]:a[1];m=(m>0&&m<12)?(m- 1):0;d=this.month_first?a[1]:a[0];d=(d>0&&d<32)?d:1;y=parseInt((a[2]>1900&&a[2]<3000)?a[2]:2008);if(jQuery.inArray(y,this.years)==-1){var ly=this.years.pop();this.years=[];for(var i=y;i<=ly;i++){this.years.push(i);}}
this.get_months(new Date(y,m,d));}else{this.get_months(new Date());}
this.display();},generate_date:function(date)
{var d=date.day<10?'0'+ date.day:date.day;var m=date.month+ 1<10?'0'+(date.month+ 1):date.month+ 1;return(this.month_first?(m+'/'+ d):(d+'/'+ m))+'/'+ date.year;},choose:function(d,m,r)
{if(m=='+'){if(this.next_month.year>this.years[this.years.length- 1]){this.years.push(this.next_month.year);}
this.get_months(new Date(this.next_month.year,this.next_month.month,d>this.next_month.days?this.next_month.days:d));}else if(m=='-'){if(this.previous_month.year<this.years[0]){this.years.unshift(this.previous_month.year);}
this.get_months(new Date(this.previous_month.year,this.previous_month.month,d>this.previous_month.days?this.previous_month.days:d));}else if(m=='y+'){this.current_month.year++;var new_month=this.get_date(new Date(this.current_month.year,this.current_month.month,1));this.get_months(new Date(this.current_month.year,this.current_month.month,d>new_month.days?new_month.days:d));}else if(m=='y-'){this.current_month.year--;var new_month=this.get_date(new Date(this.current_month.year,this.current_month.month,1));this.get_months(new Date(this.current_month.year,this.current_month.month,d>new_month.days?new_month.days:d));}else if(m=='cy'){var new_month=this.get_date(new Date(this.current_month.year,d,1));this.current_month.year=d;this.get_months(new Date(this.current_month.year,this.current_month.month,this.current_month.day>new_month.days?new_month.days:this.current_month.day));}else{var new_month=this.get_date(new Date(this.current_month.year,m,1));this.get_months(new Date(this.current_month.year,m,d>new_month.days?new_month.days:d));}
if(r&&r==true){$('#sw_'+ this.id).click();$('#'+ this.date_id).val(this.generate_date(this.current_month));$('#'+ this.date_id).trigger('change');return true;}
this.display();},display:function()
{var months_part_one='';var months_part_two='';var week_days='';var _years=[];var container=$('#'+ this.id);var button=$('#'+ this.button_id);for(var i=0;i<this.years.length;i++){_years.push('<option value="'+ this.years[i]+'"'+(this.current_month.year==this.years[i]?' selected="selected"':'')+'>'+ this.years[i]+'</option>');}
for(var i=0;i<=5;i++){months_part_one+='<li><a href="#" class="cm-months-list'+(this.current_month.month==i?' selected':'')+'" rev="'+ i+'">'+ this.months[i]+'</a></li>';}
for(var i=6;i<=11;i++){months_part_two+='<li><a href="#" class="cm-months-list'+(this.current_month.month==i?' selected':'')+'" rev="'+ i+'">'+ this.months[i]+'</a></li>';}
week_days+=this.sunday_first?'<th class="weekend">'+ this.week_days_name[0]+'</th>':'';for(var i=1;i<7;i++){week_days+='<th'+(i==6?' class="weekend"':'')+'>'+ this.week_days_name[i]+'</th>';}
week_days+=!this.sunday_first?'<th class="weekend">'+ this.week_days_name[0]+'</th>':'';container.html('<div class="calendar-navig"><a title="Previous month" href="#" class="cm-previous-month">&nbsp;</a>'+
this.current_month.day+' '+
(this.months[this.current_month.month])+', '+
this.current_month.year+'<a href="#" title="Next month" class="cm-next-month">&nbsp;</a></div>'+'<div class="clear"><table border="0" cellspacing="0" cellpadding="0"><tr><td><div class="float-left"><ul class="float-left">'+ months_part_one+'</ul><ul>'+ months_part_two+'</ul><select class="cm-years-list">'+ _years.join('')+'</select></div></td>'+'<td><table class="calendar float-left" cellspacing="0" cellpadding="0">'+'<tr>'+ week_days+'</tr>'+
this.generate_cells()+'</table></td></tr></table></div>');var w=jQuery.get_window_sizes();var bp=button.offset();var new_x=bp.left+ container.width()>w.offset_x+ w.view_width?bp.left+ button.width()- container.width():bp.left;var new_y=bp.top+ button.height()+ container.height()>w.offset_y+ w.view_height?bp.top- container.height():bp.top+ button.height();container.css({'left':new_x+'px','top':new_y+'px'});var obj=this;$('.cm-years-list',container).change(function(){obj.choose($(this).val(),'cy');});},generate_cells:function()
{var cells='<tr>';var today=this.get_date(new Date());var day=0;var wday=0;var week=1;if(this.current_month.first_wday==0){this.current_month.first_wday=7;}
var first_wday=this.sunday_first?this.current_month.first_wday+ 1:this.current_month.first_wday;if(first_wday>7){first_wday=1;}
for(var k=1;k<first_wday;k++){cells+='<td class="previous-month-days"><a class="cm-previous-days">'+(this.previous_month.days+ 1- first_wday+ k)+'</a></td>';wday++;}
var weekend_days=this.sunday_first?[7,1]:[6,7];var done=false;while(done==false){day++;wday++;cells+='<td class="'+(day==this.current_month.day?'selected':'')+' cm-current-days'+(jQuery.inArray(wday,weekend_days)!=-1?' weekend':'')+'"><a class="cm-current-days'+(day==today.day&&this.current_month.year==today.year&&this.current_month.month==today.month?' strong':'')+'">'+ day+'</a></td>';if(wday==7){cells+='</tr><tr>';wday=0;week++;}
if(day==this.current_month.days){break;}}
for(var k=wday;k<7;k++){cells+='<td class="next-month-days"><a class="cm-next-days">'+(k- wday+ 1)+'</a></td>';}
day=7- wday;if(week<6){cells+='</tr><tr>';wday=0;for(var k=0;k<7;k++){cells+='<td class="next-month-days"><a class="cm-next-days">'+(k+ day+ 1)+'</a></td>';}}
if(wday<7){cells+='</tr>';}
return cells;},get_days:function(month,year)
{var is_leap=(year%4==0);var ma=[31,28,31,30,31,30,31,31,30,31,30,31];if(is_leap){ma[1]++;}
return ma[month];}};