function MM_preloadImages()
{ //v3.0
  var d=document;
  if(d.images)
  {
    if(!d.MM_p)
      d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments;
    for(i=0; i<a.length; i++)
      if (a[i].indexOf("#")!=0)
      {
        d.MM_p[j]=new Image;
        d.MM_p[j++].src=a[i];
      }
  }
}

function MM_swapImgRestore()
{ //v3.0
  var i,x,a=document.MM_sr;
  for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++)
    x.src=x.oSrc;
}

function MM_findObj(n, d)
{ //v4.01
  var p,i,x;
  if(!d)
    d=document;
  if((p=n.indexOf("?"))>0&&parent.frames.length)
  {
    d=parent.frames[n.substring(p+1)].document;
    n=n.substring(0,p);
  }
  if(!(x=d[n])&&d.all)
    x=d.all[n];
  for (i=0;!x&&i<d.forms.length;i++)
    x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++)
    x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById)
    x=d.getElementById(n);
  return x;
}

function MM_swapImage()
{ //v3.0
  var i,j=0,x,a=MM_swapImage.arguments;
  document.MM_sr=new Array;
  for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null)
   {
     document.MM_sr[j++]=x;
     if(!x.oSrc)
        x.oSrc=x.src;
     x.src=a[i+2];
   }
}

function confirmation()
{
    msg = "Are you sure you want to delete this entry?"
    if (confirm(msg))
        return true;
    else
        return false;
}

function construct_day(mon, day, year)
{
    var sel_mon=mon.selectedIndex, sel_day=day.selectedIndex, sel_yr=year.selectedIndex;
    var yr_val=year.options[sel_yr].value;
    var days, i, tagged=false;

    // reset options of day
    day.options.length=0;

    // get number of days in the month
    if ((sel_mon==1)||(sel_mon==3)||(sel_mon==5)||(sel_mon==7)||(sel_mon==8)||(sel_mon==10)||(sel_mon==12))
        days=31;
    else
    {
        if ((sel_mon==4)||(sel_mon==6)||(sel_mon==9)||(sel_mon==11))
            days=30;
        else
        {
            if (sel_mon==2)
            {
                if(yr_val%4==0)
                    days=29;
                else
                    days=28;
            }
        }
    }
    // construct options for day select box
    for (i=0; i<=days; i++)
    {
        if (i==0)
            day.options[i]=new Option("", "");
        else
        {
            if (i==sel_day)
            {
                day.options[i]=new Option(i, i, false, true);
                tagged=true;
            }
            else
            {
                if ((i==days)&&(sel_day!=-1)&&(sel_day!=0)&&(!tagged))    // last day
                    day.options[i]=new Option(i, i, false, true);
                else
                    day.options[i]=new Option(i, i, false, false);
            }
        }
    }
}

function popUp(URL) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=1,menubar=0,resizable=1,width=300,height=400,left = 412,top = 284');");
}

function prevSurvey(URL) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=1,menubar=0,resizable=1,width=700,height=400,left = 82,top = 184');");
}