// how reliable is this test?
<!--
	 isIE = (document.all ? true : false);
	 isDOM = (document.getElementById ? true : false);

     // Initialize arrays.
     var months = new Array("一月", "二月", "三月", "四月", "五月", "六月", "七月",
	 "八月", "九月", "十月", "十一月", "十二月");
     var daysInMonth = new Array(31, 28, 31, 30, 31, 30, 31, 31,
            30, 31, 30, 31);
	 var displayMonth = new Date().getMonth();
	 var displayYear = new Date().getFullYear();
	 var displayDivName;
	 var displayElement;

         function getDays(month, year) {
            // Test for leap year when February is selected.
            if (1 == month)
               return ((0 == year % 4) && (0 != (year % 100))) ||
                  (0 == year % 400) ? 29 : 28;
            else
               return daysInMonth[month];
         }

         function getToday() {
            // Generate today's date.
            this.now = new Date();
            this.year = this.now.getFullYear();
            this.month = this.now.getMonth();
            this.day = this.now.getDate();
         }

         // Start with a calendar for today.
         today = new getToday();

         function newCalendar(eltName,attachedElement) {
	    if (attachedElement) {
	       if (displayDivName && displayDivName != eltName) hideElement(displayDivName);
	       displayElement = attachedElement;
	    }
	    displayDivName = eltName;
            today = new getToday();
            var parseYear = parseInt(displayYear + '');
            var newCal = new Date(parseYear,displayMonth,1);
            var day = -1;
            var startDayOfWeek = newCal.getDay();
            if ((today.year == newCal.getFullYear()) &&
                  (today.month == newCal.getMonth()))
	    {
               day = today.day;
            }
            var intDaysInMonth =
               getDays(newCal.getMonth(), newCal.getFullYear());
            var daysGrid = makeDaysGrid(startDayOfWeek,day,intDaysInMonth,newCal,eltName)
	    if (isIE) {
	       var elt = document.all[eltName];
	       elt.innerHTML = daysGrid;
            } else if (isDOM) {
	       var elt = document.getElementById(eltName);
	       elt.innerHTML = daysGrid;
	    } else {
	       var elt = document.layers[eltName].document;
	       elt.open();
	       elt.write(daysGrid);
	       elt.close();
	    }
	 }

	 function incMonth(delta,eltName) {
	   displayMonth += delta;
	   if (displayMonth >= 12) {
	     displayMonth = 0;
	     incYear(1,eltName);
	   } else if (displayMonth <= -1) {
	     displayMonth = 11;
	     incYear(-1,eltName);
	   } else {
	     newCalendar(eltName);
	   }
	 }

	 function incYear(delta,eltName) {
	   displayYear = parseInt(displayYear + '') + delta;
	   newCalendar(eltName);
	 }

	 function makeDaysGrid(startDay,day,intDaysInMonth,newCal,eltName) {
	    var daysGrid;
	    var month = newCal.getMonth();
	    var year = newCal.getFullYear();
	    var isThisYear = (year == new Date().getFullYear());
	    var isThisMonth = (day > -1)
	    daysGrid = '<table border=1 cellspacing=0 cellpadding=2><tr><td bgcolor=#ffffff nowrap>';
	    daysGrid += '<font face="courier new, courier" size=2>';
	    daysGrid += '<a href="javascript:hideElement(\'' + eltName + '\')">x</a>';
	    daysGrid += '&nbsp;&nbsp;';
	    daysGrid += '<a href="javascript:incMonth(-1,\'' + eltName + '\')">&laquo; </a>';

	    daysGrid += '<b>';
	    if (isThisMonth) { daysGrid += '<font color=red>' + months[month] + '</font>'; }
	    else { daysGrid += months[month]; }
	    daysGrid += '</b>';

	    daysGrid += '<a href="javascript:incMonth(1,\'' + eltName + '\')"> &raquo;</a>';
	    daysGrid += '&nbsp;&nbsp;&nbsp;';
	    daysGrid += '<a href="javascript:incYear(-1,\'' + eltName + '\')">&laquo; </a>';

	    daysGrid += '<b>';
	    if (isThisYear) { daysGrid += '<font color=red>' + year + '</font>'; }
	    else { daysGrid += ''+year; }
	    daysGrid += '</b>';

	    daysGrid += '<a href="javascript:incYear(1,\'' + eltName + '\')"> &raquo;</a><br>';
	    daysGrid += '&nbsp;Su Mo Tu We Th Fr Sa&nbsp;<br>&nbsp;';
	    var dayOfMonthOfFirstSunday = (7 - startDay + 1);
	    for (var intWeek = 0; intWeek < 6; intWeek++) {
	       var dayOfMonth;
	       for (var intDay = 0; intDay < 7; intDay++) {
	         dayOfMonth = (intWeek * 7) + intDay + dayOfMonthOfFirstSunday - 7;
		 if (dayOfMonth <= 0) {
	           daysGrid += "&nbsp;&nbsp; ";
		 } else if (dayOfMonth <= intDaysInMonth) {
		   var color = "blue";
		   if (day > 0 && day == dayOfMonth) color="red";
		   daysGrid += '<a href="javascript:setDay(';
		   if(dayOfMonth<10){
		   	daysGrid += '0'+dayOfMonth + ',\'' + eltName + '\')" ';
		   }else{
		   	daysGrid += dayOfMonth + ',\'' + eltName + '\')" ';
		   }
		   daysGrid += 'style="color:' + color + '">';
		   var dayString = dayOfMonth + "</a> ";
		   if (dayString.length == 6) dayString = '0' + dayString;
		   daysGrid += dayString;
		 }
	       }
	       if (dayOfMonth < intDaysInMonth) daysGrid += "<br>&nbsp;";
	    }
	    return daysGrid + "</td></tr></table>";
	 }

	 function setDay(day,eltName) {
	   displayElement.value = displayYear+"-"+(displayMonth + 1) + "-" + day ;
	   hideElement(eltName);
	 }
// -->

<!-- 
	//日历控件用到js
	// fixPosition() attaches the element named eltname
	// to an image named eltname+'Pos'
	//
	function fixPosition(divname)
	{
		divstyle = getDivStyle(divname);
		positionerImgName = divname + 'Pos';
		// hint: try setting isPlacedUnder to false
		isPlacedUnder = false;
		if (isPlacedUnder)
		{

			setPosition(divstyle,positionerImgName,true);
		}
		else {
			setPosition(divstyle,positionerImgName);
		}
	}
	function setPosition(elt,positionername,isPlacedUnder) {
		var isIE = (document.all ? true : false);
// both IE5 and NS6 are DOM-compliant
		var isDOM = (document.getElementById ? true : false);
	 var positioner;
	 if (isIE) {
	  positioner = document.all[positionername];
	 } else {
	  if (isDOM) {
		positioner = document.getElementById(positionername);
	  } else {
		// not IE, not DOM (probably NS4)
		// if the positioner is inside a netscape4 layer this will *not* find it.
		// I should write a finder function which will recurse through all layers
		// until it finds the named image...
		positioner = document.images[positionername];
	  }
	 }
	 elt.left = getAbsX(positioner);
	 elt.top = getAbsY(positioner) + (isPlacedUnder ? positioner.height : 0);
	}
	function getAbsX(elt) { return (elt.x) ? elt.x : getAbsPos(elt,"Left"); }
	function getAbsY(elt) { return (elt.y) ? elt.y : getAbsPos(elt,"Top"); }
	function getAbsPos(elt,which) {
	 iPos = 0;
	 while (elt != null) {
	  iPos += elt["offset" + which];
	  elt = elt.offsetParent;
	 }
	 return iPos;
	}
	function hideElement(divname) {
		getDivStyle(divname).visibility = 'hidden';
	}
	function toggleDatePicker(eltName,formElt,formSelect)
	{
		var x = formElt.indexOf('.');
		var formName = formElt.substring(0,x);
		var formEltName = formElt.substring(x+1);
		newCalendar(eltName,document.forms[formName].elements[formEltName],document.forms[formName].elements[formSelect]);
		toggleVisible(eltName);
	}
	function fixPositions()
	{

		fixPosition('SDateSelect');
		fixPosition('EDateSelect');
	}
	function getDivStyle(divname) {
	 var style;
	 if (isDOM) { style = document.getElementById(divname).style; }
	 else { style = isIE ? document.all[divname].style
						 : document.layers[divname]; } // NS4
	 return style;
	}

	function toggleVisible(divname) {
	 divstyle = getDivStyle(divname);
	 if (divstyle.visibility == 'visible' || divstyle.visibility == 'show') {
	   divstyle.visibility = 'hidden';
	 } else {
	   fixPosition(divname);
	   divstyle.visibility = 'visible';
	 }
	}
	
	function FieldSearchForm_onsubmit() {
		var frmLog = document.form1;
		var sDate = new Date(frmLog.sDate.value);
		
		if ( frmLog.SDate.value>frmLog.EDate.value)
		{
			alert("开始时间不能大于结束时间！");
			frmLog.SDate.focus();
			return false;
		}else{
			return true;
		}
	}
// -->