function get$(elementId)
{
  return document.getElementById(elementId);
}

function get$Value(elementId)
{
  var eleValue = '';
  
  if( get$(elementId) != null)
  {
    eleValue = get$(elementId).value;
  }
  return eleValue;
}

function set$Value(elementId, elementValue)
{
  if( get$(elementId) != null)
  {
    get$(elementId).value = elementValue;
  }
}

function get$Name(elementName)
{
  return document.getElementsByName(elementName);
}

function toggleDisplay(objId, displayMode)
{
  if(get$(objId) != null)
  {
    get$(objId).style.display = displayMode;
  }
}

function delete_confirmation(message_str, url)
{
	if (message_str == "") 
	{
		message_str = "this record";
	}
	else
	{
		message_str = "the " + message_str;
	}
	var r = confirm("Are you sure want to delete " + message_str + "?")
		if (r==true)
	{
		location.href = url;
	}
}

function validate_photos_form(obj)
{
	return (checkstr(obj.ccd_photo_caption,'caption') && chkimage(obj.ccd_photo_simage) && chkimage(obj.ccd_photo_image)); // && checkstr(obj.ccd_photo_simage,'image') && checkstr(obj.ccd_photo_image,'image'));
}

function validate_top_banner_form(obj)
{
	return (checkstr(obj.fileimage,'image') && chkimage(obj.fileimage)); 
}

function chkimage(obj)
{
	if (Trim(obj.value).length != 0)
	{
		var ext = getfileext(obj.value);
		if (!(ext == ".jpg" || ext == ".jpeg"))
		{
			alert('Please provide a valid file format for the image. Valid formats are jpg or jpeg.');
			obj.value='';
			obj.focus();
			return false;
		}
	}
	return true;
}

function validate_prayer_timing_form(obj)
{
	return (checkstr(obj.excelfile,'excelfile') && chk_excel(obj.excelfile)); 
}

function chk_excel(obj)
{
	if (Trim(obj.value).length != 0)
	{
		var ext = getfileext(obj.value);
		if (!(ext == ".xls"))
		{
			alert('Please provide a valid file format for the file. Valid format is xls.');
			obj.focus();
			return false;
		}
	}
	return true;
}

function validate_multimedia_form(obj)
{
	return (checkstr(obj.mult_file,'audio/video file') && chk_mult(obj.mult_file)); 
}

function chk_mult(obj)
{
	if (Trim(obj.value).length != 0)
	{
		var ext = getfileext(obj.value);
		if (!(ext == ".asx"))
		{
			alert('Please provide a valid file format for the file. Valid format is asx.');
			obj.focus();
			return false;
		}
	}
	return true;
}

function getfileext(filename)
{
	return Trim(filename).substr(Trim(filename).length-4).toLowerCase();
}
function LTrim(str)
	{
		if (str==null){return null;}
		for(var i=0;str.charAt(i)==" ";i++);
		return str.substring(i,str.length);
	}
function RTrim(str)
	{
		if (str==null){return null;}
		for(var i=str.length-1;str.charAt(i)==" ";i--);
		return str.substring(0,i+1);
	}
function Trim(str){return LTrim(RTrim(str));}

function checkstr(obj,errmsg)
{
	if (Trim(obj.value).length == 0)
	{
		alert('Please enter/select a valid ' + errmsg + '.');
		obj.focus();
		return false;
	}
	return true;
}
function validate_feedback_form(obj)
{
	return (checkstr(obj.to_date,'date') && checkstr(obj.from_date,'date')); // && checkstr(obj.ccd_photo_simage,'image') && checkstr(obj.ccd_photo_image,'image'));
}

function popup(url,width,height)
{
	w=window.open(url,"popupwin","width="+width+",height="+height+",position=center")
}

function ValidateFullNumeric(myfield,e)
{
	var keycode;
	if (window.event) keycode = window.event.keyCode;
	else if (e) keycode = e.which;
	else return true;
	if (((keycode>46) && (keycode<58) )  || (keycode==8)) { return true; }
	else return false;
}

//<a href="#" onClick="javascript:delete_confirmation('category with name %s', 'manage_category.aspx?action=delete&category_id=..')"></a>
/**
 * DHTML date validation script for dd/mm/yyyy. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */
// Declaring valid date character, minimum year and maximum year
var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate_dd(dtStr){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strDay=dtStr.substring(0,pos1)
	var strMonth=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		alert("The date format should be : dd/mm/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please select a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please select a valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please select valid year")
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please select a valid date")
		return false
	}
return true
}


//For mm//dd/yyy
function isDate_mm(dtStr){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strMonth=dtStr.substring(0,pos1)
	var strDay=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		alert("The date format should be : mm/dd/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please select valid year")
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter a valid date")
		return false
	}
return true
}

//

function ValidateDateFormat(str_format,d_date)
{
	//var dt=document.frmSample.txtDate
	var dt= d_date;
	
	if (str_format=="dd/mm/yyyy")	
	  {
	    if (isDate_dd(dt)==false)
	    {
		    //dt.focus()
		    return false
	    }
      return true
    }
    else
    {
	    if (isDate_mm(dt)==false)
	    {
		   // dt.focus()
		    return false
	    }
      return true
    }
 }