calender.js

给某大型ICP网站开发的域名管理支付系统

var gdCtrl = new Object();
var goSelectTag = new Array();
var gcGray = "#808080";
var gcToggle = "#ffff00";
var gcBG = "#cccccc";

var gdCurDate = new Date();
var giYear = gdCurDate.getFullYear();
var giMonth = gdCurDate.getMonth()+1;
var giDay = gdCurDate.getDate();

//****************************************************************************
// Param: popCtrl is the widget beyond which you want this calendar to appear;
//        dateCtrl is the widget into which you want to put the selected date.
// i.e.: <input type="text" name="dc" style="text-align:center" readonly>
// <INPUT type="button" value="V" onclick="fPopCalendar(dc,dc);return false">
//****************************************************************************
function fPopCalendar(popCtrl, dateCtrl)
{
	event.cancelBubble=true;
	gdCtrl = dateCtrl;
	fSetYearMon(giYear, giMonth);
	var point = fGetXY(popCtrl);
	with (VicPopCal.style)
	{
		left = point.x;
		top  = point.y+popCtrl.offsetHeight+1;
		width = VicPopCal.offsetWidth;
		height = VicPopCal.offsetHeight;
		fToggleTags(point);
		visibility = 'visible';
	}
	VicPopCal.focus();
}

function fSetDate(iYear, iMonth, iDay)
{
	gdCtrl.value = iYear+"-"+iMonth+"-"+iDay; //Here, you could modify the locale as you need !!!!
	fHideCalendar();
}

function fHideCalendar()
{
	VicPopCal.style.visibility = "hidden";
	for (i in goSelectTag)
		goSelectTag[i].style.visibility = "visible";
	goSelectTag.length = 0;
}

function fSetSelected(aCell)
{
	var iOffset = 0;
	var iYear = parseInt(tbSelYear.value);
	var iMonth = parseInt(tbSelMonth.value);
	
	aCell.bgColor = gcBG;
	with (aCell.children["cellText"])
	{
		var iDay = parseInt(innerText);
		if (color==gcGray)
			iOffset = (Victor<10)?-1:1;
		iMonth += iOffset;
		if (iMonth<1)
		{
			iYear--;
			iMonth = 12;
		}
		else if (iMonth>12)
		{
			iYear++;
			iMonth = 1;
		}
	}
	fSetDate(iYear, iMonth, iDay);
}

function Point(iX, iY)
{
	this.x = iX;
	this.y = iY;
}

function fBuildCal(iYear, iMonth)
{
	var aMonth=new Array();
	for(i=1;i<7;i++)
	{
		aMonth[i]=new Array(i);
	}
	
	var dCalDate=new Date(iYear, iMonth-1, 1);
	var iDayOfFirst=dCalDate.getDay();
	var iDaysInMonth=new Date(iYear, iMonth, 0).getDate();
	var iOffsetLast=new Date(iYear, iMonth-1, 0).getDate()-iDayOfFirst+1;
	var iDate = 1;
	var iNext = 1;
	
	for (d = 0; d < 7; d++)
	{
		aMonth[1][d] = (d<iDayOfFirst)?-(iOffsetLast+d):iDate++;
	}
	for (w = 2; w < 7; w++)
	{
		for (d = 0; d < 7; d++)
		{
			aMonth[w][d] = (iDate<=iDaysInMonth)?iDate++:-(iNext++);
		}
	}
	return aMonth;
}

function fDrawCal(iYear, iMonth, iCellHeight, iDateTextSize)
{
	var WeekDay = new Array("日","一","二","三","四","五","六");
	var styleTD = " bgcolor='"+gcBG+"' bordercolor='"+gcBG+"' valign='middle' align='center' height='"+iCellHeight+"' style='font:bold "+iDateTextSize+" 宋体;";
	
	with (document)
	{
		write("<tr>");
		for(i=0; i<7; i++)
		{
			write("<td "+styleTD+"color:#990099' >" + WeekDay[i] + "</td>");
		}
		write("</tr>");
		
		for (w = 1; w < 7; w++)
		{
			write("<tr>");
			for (d = 0; d < 7; d++)
			{
				write("<td id=calCell "+styleTD+"cursor:hand;' onMouseOver='this.bgColor=gcToggle' onMouseOut='this.bgColor=gcBG' onclick='fSetSelected(this)'>");
				write("<font id=cellText Victor='Liming Weng'> </font>");
				write("</td>")
			}
			write("</tr>");
		}
	}
}

function fUpdateCal(iYear, iMonth)
{
	myMonth = fBuildCal(iYear, iMonth);
	var i = 0;
	for (w = 0; w < 6; w++)
	{
		for (d = 0; d < 7; d++)
		{
			with (cellText[(7*w)+d])
			{
				Victor = i++;
				if (myMonth[w+1][d]<0) {
				color = gcGray;
				innerText = -myMonth[w+1][d];
				}else{
				color = ((d==0)||(d==6))?"red":"black";
				innerText = myMonth[w+1][d];
				}
			}
		}
	}
}

function fSetYearMon(iYear, iMon)
{
	tbSelMonth.options[iMon-1].selected = true;
	for (i = 0; i < tbSelYear.length; i++)
	{
		if (tbSelYear.options[i].value == iYear)
			tbSelYear.options[i].selected = true;
	}
	fUpdateCal(iYear, iMon);
}

function fPrevMonth()
{
	var iMon = tbSelMonth.value;
	var iYear = tbSelYear.value;
	
	if (--iMon<1)
	{
		iMon = 12;
		iYear--;
	}
	
	fSetYearMon(iYear, iMon);
}

function fNextMonth()
{
	var iMon = tbSelMonth.value;
	var iYear = tbSelYear.value;
	
	if (++iMon>12)
	{
		iMon = 1;
		iYear++;
	}
	
	fSetYearMon(iYear, iMon);
}

function fToggleTags()
{
	with (document.all.tags("SELECT"))
	{
		for (i=0; i<length; i++)
		{
			if ((item(i).Victor!="Won")&&fTagInBound(item(i)))
			{
				item(i).style.visibility = "hidden";
				goSelectTag[goSelectTag.length] = item(i);
			}
		}
	}
}

function fTagInBound(aTag)
{
	with (VicPopCal.style)
	{
		var l = parseInt(left);
		var t = parseInt(top);
		var r = l+parseInt(width);
		var b = t+parseInt(height);
		var ptLT = fGetXY(aTag);
		return !((ptLT.x>r)||(ptLT.x+aTag.offsetWidth<l)||(ptLT.y>b)||(ptLT.y+aTag.offsetHeight<t));
	}
}

function fGetXY(aTag)
{
	var oTmp = aTag;
	var pt = new Point(0,0);
	do
	{
		pt.x += oTmp.offsetLeft;
		pt.y += oTmp.offsetTop;
		oTmp = oTmp.offsetParent;
	} while(oTmp.tagName!="BODY");
	return pt;
}

var gMonths = new Array("&nbsp;一月","&nbsp;二月","&nbsp;三月","&nbsp;四月","&nbsp;五月","&nbsp;六月","&nbsp;七月","&nbsp;八月","&nbsp;九月","&nbsp;十月","十一月","十二月");

with (document)
{
	write("<Div id='VicPopCal' onclick='event.cancelBubble=true' style='POSITION:absolute;visibility:hidden;border:2px ridge;width:10;z-index:100;'>");
	write("<table border='0' bgcolor='#6699cc'>");
	write("<TR>");
	write("<td valign='middle' align='center'><input type='button' name='PrevMonth' value='<' style='height:20;width:20;FONT:bold' onClick='fPrevMonth()'>");
	write("&nbsp;<SELECT name='tbSelYear' onChange='fUpdateCal(tbSelYear.value, tbSelMonth.value)' Victor='Won'>");
	for(i=1970;i<2015;i++)
	{
		write("<OPTION value='"+i+"'>"+i+"年</OPTION>");
	}
	write("</SELECT>");
	write("&nbsp;<select name='tbSelMonth' onChange='fUpdateCal(tbSelYear.value, tbSelMonth.value)' Victor='Won'>");
	for (i=0; i<12; i++)
	{
		write("<option value='"+(i+1)+"'>"+gMonths[i]+"</option>");
	}
	write("</SELECT>");
	write("&nbsp;<input type='button' name='PrevMonth' value='>' style='height:20;width:20;FONT:bold' onclick='fNextMonth()'>");
	write("</td>");
	write("</TR><TR>");
	write("<td align='center'>");
	write("<DIV style='background-color:teal'><table width='100%' border='0' cellpadding='2'>");
	fDrawCal(giYear, giMonth, 12, 12);
	write("</table></DIV>");
	write("</td>");
	write("</TR><TR><TD align='center'>");
	write("<B style='cursor:hand;font:bold 16 宋体' onclick='fSetDate(giYear,giMonth,giDay)' onMouseOver='this.style.color=gcToggle' onMouseOut='this.style.color=0'>今天："+giYear+"年"+giMonth+"月"+giDay+"日</B>");
	write("</TD></TR>");
	write("</TABLE></Div>");
	write("<SCRIPT event=onclick() for=document>fHideCalendar()</SCRIPT>");
}