/*******************************************\
日期选择类：58版权所有 最坏是单飞 下载
\*******************************************/
 function Calendar ()
{
	var o = this;
	var GGS_cal_curdate = new Date();
	var GGS_cal_curyear = GGS_cal_curdate.getFullYear();
	var GGS_cal_curmonth = GGS_cal_curdate.getMonth();
	var GGS_cal_curday = GGS_cal_curdate.getDate();
	var GGS_cal_robj = null;
	//var dom = new GGServer.Class.Dom.Dom();
	var dom = new Dom();
	o.obj = null;
	o.isDaysToCome = false;

	o.AppendText = function(pObj, text, className,mYear,mMonth,mDay){
		mYear  = parseInt(mYear , 10);
		mMonth = parseInt(mMonth , 10);
		mDay   = parseInt(mDay , 10);
		rMonth = mMonth + 1;
		var divObj = document.createElement("DIV");
		if(className) divObj.className = className;
		divObj.appendChild(document.createTextNode(text));
		pObj.appendChild(divObj);

		var curyear = parseInt(GGS_cal_curyear , 10);
		var curmonth = parseInt(GGS_cal_curmonth , 10)+1;
		var curday = parseInt(GGS_cal_curday , 10);
		
		if(o.isDaysToCome){
			if(curyear+'-'+(curmonth<10?'0'+curmonth:curmonth)+'-'+(curday<10?'0'+curday:curday) < mYear+'-'+(rMonth<10?'0'+rMonth:rMonth)+'-'+(mDay<10?'0'+mDay:mDay) || mYear+'-'+(rMonth<10?'0'+rMonth:rMonth)+'-'+(mDay<10?'0'+mDay:mDay) < '1998-07-10')
			{
				divObj.style.cursor = "pointer";
				return;
			}
		}
		
		if(divObj.className != "GGS_cal_weekday"){
			divObj.onmouseover = function(){
				this.className = "GGS_cal_sltday";
				this.title = mYear+"年"+rMonth+"月"+mDay+"日";
				dom.$("GGS_cal_date").innerHTML = mYear+'-'+(rMonth<10?'0'+rMonth:rMonth)+'-'+(mDay<10?'0'+mDay:mDay);
			};
			divObj.onmousedown = function(){
				this.className = 'GGS_cal_slt2day';
			};
			divObj.onmouseout = function(){
				var curClass = (GGS_cal_curyear==mYear&&GGS_cal_curmonth==mMonth&&GGS_cal_curday==mDay)?'GGS_cal_curday':'GGS_cal_day';
				this.className = curClass;
			};
			divObj.onclick = function(){
				if(rMonth < 10) rMonth = "0" + rMonth;		//小于10补0
				if(mDay < 10) mDay = "0" + mDay;			//小于10补0
				if(GGS_cal_robj instanceof Array && GGS_cal_robj.length==3){
					GGS_cal_robj[0].value = mYear;
					GGS_cal_robj[1].value = rMonth;
					GGS_cal_robj[2].value = mDay;
				}else{
					GGS_cal_robj.value = (mYear+"-"+rMonth+"-"+mDay);
				}
				o.ColClose();
			}
			divObj.style.cursor = "pointer";
		}
	}

	o.GetOffsetPos = function(element) {
		var posTop = 0, posLeft = 0;
		do {
			posTop += element.offsetTop || 0;
			posLeft += element.offsetLeft || 0;
			element = element.offsetParent;
			} while (element);
			return [posLeft, posTop];
	}
	o.TurnMonth = function(sign){
		var curMonth = parseInt(dom.$("GGS_cal_month").innerHTML , 10) - 1;
		var curYear  = parseInt(dom.$("GGS_cal_year").innerHTML , 10);
		if(sign==0){
			if(curMonth<=0){
				curMonth = 11;
				curYear --;
			}else{
				curMonth --;
			}
		}else if(sign==1){
			if(curMonth>=11){
				curMonth = 0;
				curYear ++;
			}else{
				curMonth ++;
			}
		}
		o.SetDate(curYear, curMonth);
	}
	o.TurnYear = function(sign){
		var curMonth = parseInt(dom.$("GGS_cal_month").innerHTML , 10) - 1;
		var curYear  = parseInt(dom.$("GGS_cal_year").innerHTML , 10);
		if(sign==0){
			if(curYear>1) curYear --;
		}else if(sign==1){
			curYear ++;
		}
		o.SetDate(curYear, curMonth);
	}
	o.ColClose = function(){
		if(dom.$("GGS_cal_ibg") != null && dom.$("GGS_cal") != null){
			dom.$("GGS_cal_ibg").style.display = "none";
			dom.$("GGS_cal").style.display = "none";
		}
	}
	o.SetDate = function(mYear, mMonth){
		mYear = parseInt(mYear , 10);
		mMonth = parseInt(mMonth , 10);
		var firstDay = new Date(mYear,mMonth,1);
		var lastDay = new Date(((mMonth==11)?(mYear+1):mYear),((mMonth==11)?0:(mMonth+1)),0);

		dom.$("GGS_cal_year").innerHTML = mYear;
		dom.$("GGS_cal_month").innerHTML = mMonth+1;

		var dayIndex = 1;
		var con = dom.$("GGS_cal_days");
		con.innerHTML = "";
		for(var i=0;i<=41;i++){
			if(i>(firstDay.getDay()+lastDay.getDate()-1)) break;
			if(i>=firstDay.getDay()){
				var curClass = (GGS_cal_curyear==mYear&&GGS_cal_curmonth==mMonth&&GGS_cal_curday==dayIndex)?'GGS_cal_curday':'GGS_cal_day';
				o.AppendText(con,dayIndex,curClass,mYear,mMonth,dayIndex);
				dayIndex++;
			}else{
				o.AppendText(con,'','GGS_cal_weekday');
			}
		}
		var cal = dom.$("GGS_cal");
		var ibg = dom.$("GGS_cal_ibg");
		ibg.style.height = cal.offsetHeight;
	}

	o.isDateString = function(sDate)
	{
		if(sDate[0] == "undefined" || sDate[1] == "undefined" || sDate[2] == "undefined" || sDate[0] == "" || sDate[1] == "" || sDate[2] == "")
		{
			return false;
		}
		sDate = sDate[0] + '-' + sDate[1] + '-' + sDate[2];
		var iaMonthDays = [31,28,31,30,31,30,31,31,30,31,30,31]
			var iaDate = new Array(3)
			var year, month, day

			if (arguments.length != 1) return false
			iaDate = sDate.toString().split("-")
			if (iaDate.length != 3) return false
			if (iaDate[1].length > 2 || iaDate[2].length > 2) return false
			if (isNaN(iaDate[0])||isNaN(iaDate[1])||isNaN(iaDate[2])) return false

			year = parseFloat(iaDate[0])
			month = parseFloat(iaDate[1])
			day=parseFloat(iaDate[2])

			if (year < 1900 || year > 2100) return false
			if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) iaMonthDays[1]=29;
			if (month < 1 || month > 12) return false
			if (day < 1 || day > iaMonthDays[month - 1]) return false
			return true
	}

	o.IniCal = function(){
		if(arguments.length < 1){
			alert("无参数传入！");
			return false;
		}

		if(arguments.length == 1){
			GGS_cal_robj = arguments[0];
			if(arguments[0].value != "") var sltDate = arguments[0].value.split("-");
		}else if(arguments.length == 3){
			GGS_cal_robj = [arguments[0],arguments[1],arguments[2]];
			if(arguments[0].value != "" && arguments[1].value != "" && arguments[2].value != "")			var sltDate = [arguments[0].value,arguments[1].value,arguments[2].value];
		}
		if(dom.$("GGS_cal_ibg") == null){
			var f = document.createElement("IFRAME");
			f.id="GGS_cal_ibg";
			f.border = 0;
			f.frameborder = 0;
			f.scrolling = "no";
			document.body.appendChild(f);
		}

		var objPos = o.GetOffsetPos(arguments[0]);

		var divobj;
		var cal = dom.$("GGS_cal");
		if(cal != null){
			divobj = cal;
			divobj.style.display="block";
			divobj.style.top=(parseInt(objPos[1])+parseInt(arguments[0].offsetHeight)+1)+"px";
			divobj.style.left=parseInt(objPos[0])+"px";
			//document.body.removeChild(cal);
		}else{
		
			divobj = document.createElement("div");
			divobj.innerHTML=o.GetStyle.getHtml(0);
			divobj.style.display="block";
			divobj.style.position="absolute";
			if(navigator.userAgent.indexOf("FireFox") != -1)
			{
				divobj.style.width="228px";
			}
			else
			{
				divobj.style.width="230px";
			}
			divobj.style.top=(parseInt(objPos[1])+parseInt(arguments[0].offsetHeight)+1)+"px";
			divobj.style.left=parseInt(objPos[0])+"px";
			divobj.id= "GGS_cal";
			document.body.appendChild(divobj);
		}

		o.SetDate((arguments[0].value == "" || !o.isDateString(sltDate))?GGS_cal_curyear:parseInt(sltDate[0] , 10),(arguments[0].value == "" || !o.isDateString(sltDate))?GGS_cal_curmonth:parseInt(sltDate[1] , 10)-1);

		var GGS_cal_curyear2 = parseInt(GGS_cal_curyear , 10);
		var GGS_cal_curmonth2 = parseInt(GGS_cal_curmonth , 10)+1;
		GGS_cal_curmonth2 = GGS_cal_curmonth2<10 ? "0"+GGS_cal_curmonth2 : GGS_cal_curmonth2;
		var GGS_cal_curday2 = parseInt(GGS_cal_curday , 10);
		GGS_cal_curday2 = GGS_cal_curday2<10 ? "0"+GGS_cal_curday2 : GGS_cal_curday2;

		dom.$("GGS_cal_date").innerHTML = (arguments[0].value == "" || !o.isDateString(sltDate))?GGS_cal_curyear2+'-'+GGS_cal_curmonth2+'-'+GGS_cal_curday2:sltDate[0]+'-'+sltDate[1]+'-'+sltDate[2];

		var ibg = dom.$("GGS_cal_ibg");
		ibg.style.display = "block";
		//if(navigator.userAgent.indexOf("Opera") == -1)
		//{
			ibg.style.top=(parseInt(objPos[1])+parseInt(arguments[0].offsetHeight)+1)+"px";
			ibg.style.left=parseInt(objPos[0])+"px";
			ibg.style.height = divobj.offsetHeight;
		//}
		
	}

	o.GetStyle = {
		getHtml: function(num){
			var htmls = {
				t_0:'<table border=\'0\' cellpadding=\'0\' cellspacing=\'0\' class=\'f12\'><tr><td class=\'rl_b1\'>'+
					'<table border=\'0\' class=\'f12\' width=\'100%\' cellpadding=\'4\' cellspacing=\'0\'>'+
					'<tr align=\'center\' bgcolor=\'#fff6c0\'>'+
					'<td><b class=\'nyr\'><span id=\'GGS_cal_date\'>2007-1-19</span></b></td>'+
					'<td width=\'15\'><a href=\'javascript:'+o.obj+'.ColClose();\'><img src=\'yuyue/ylimages/icoClose.gif\' border=\'0\' width=\'15\' height=\'15\' alt=\'关闭\'></a></td>'+
					'</tr>'+
					'</table>'+
					'<table border=\'0\' class=\'f12\' bgcolor=\'#ffffff\'>'+
					'<tr align=\'center\' height=\'20\'>'+
					'<td><a href=\'javascript:'+o.obj+'.TurnYear(0);\'><img border=\'0\' src=\'yuyue/ylimages/icoAl1.gif\' width=\'14\' height=\'13\' alt=\'上一年\'></a></td>'+
					'<td colspan=\'2\'><b class=\'ny\'><span id=\'GGS_cal_year\'>2007</span></b>年</td>'+
					'<td><a href=\'javascript:'+o.obj+'.TurnYear(1);\'><img border=\'0\' src=\'yuyue/ylimages/icoAl2.gif\' width=\'14\' height=\'13\' alt=\'下一年\'></a></td>'+
					'<td><a href=\'javascript:'+o.obj+'.TurnMonth(0);\'><img border=\'0\' src=\'yuyue/ylimages/icoAl1.gif\' width=\'14\' height=\'13\' alt=\'上一月\'></a></td>'+
					'<td><b class=\'ny\'><span id=\'GGS_cal_month\'>1</span></b>月</td>'+
					'<td><a href=\'javascript:'+o.obj+'.TurnMonth(1);\'><img border=\'0\' src=\'yuyue/ylimages/icoAl2.gif\' width=\'14\' height=\'13\' alt=\'下一月\'></a></td>'+
					'</tr>'+
					'<tr align=\'center\' height=\'20\' bgcolor=\'#fff6c0\'>'+
					'<td width=\'30\'><font color=\'#ff0066\'>日</font></td>'+
					'<td width=\'30\'>一</td>'+
					'<td width=\'30\'>二</td>'+
					'<td width=\'30\'>三</td>'+
					'<td width=\'30\'>四</td>'+
					'<td width=\'30\'>五</td>'+
					'<td width=\'30\'><font color=\'#ff0066\'>六</font></td>'+
					'</tr>'+
					'<tr><table>'+
					'<div id=\'GGS_cal_days\' class=\'clearfix\'></div>'+
					'<div style=\'clear:both\'></div>'+
					'</table></tr>'+
					'</table>'+
					'</td></tr></table>',
				t_1: "2",
				t_2: "3"
			}
			return eval("htmls.t_" + num);
		},
		getCss: function(num){
			var csss = {
				t_0:"ylcss/ylCalendarCSS",
				t_1: "2",
				t_2: "3"
			}
			//document.writeln( eval("csss.t_" + num) );
			//alert(csss.t_0)
			dom.loadCss(csss.t_0);
		}
	}

	o.GetStyle.getCss(0);
}