function Validate_fields(obj)
{ 
	if(obj.name =="login_form")
	{	
		
		 if(document.login_form.username.value=="")
		 {
			  alert("Please Enter Username.");
			  document.login_form.username.focus();
			  return false;
		  }
		  if(document.login_form.password.value=="")
		 {
			  alert("Please Enter Password.");
			  document.login_form.password.focus();
			  return false;
		  }		  
	 }
	 if(obj.name=="forgot_form")
	 {	 
	     if(document.forgot_form.fld_email.value=="")
		  {
			  alert("Please Enter Email Id.");
			  document.forgot_form.fld_email.focus();
			  return false;
		  }	 
	 }
	 
	 // code for change password form
	 if(obj.name=="change_pass_form")
	 {	 
	     if(document.change_pass_form.old_pass.value=="")
		  {
			  alert("Please Enter Old Password.");
			  document.change_pass_form.old_pass.focus();
			  return false;
		  }	
		  
		 if(document.change_pass_form.new_pass.value=="")
		  {
			  alert("Please Enter New Password.");
			  document.change_pass_form.new_pass.focus();
			  return false;
		  }	
	 }
 
  
 return true; 
	
}	

function cancel_click()
{ 
	document.forgot_form.action="index.php";
	document.forgot_form.method="post";
	document.forgot_form.submit();
	
}

function confirm_del(url){
	
	var answer = confirm("Are you sure you wish to delete this record ? This will delete all the related records also.");		

	if(eval(answer) == true)
	{		
		location.href=url;	
		return answer;
	}
	else
	{
		return answer;
	}
}
	
function confirm_delImg(){
	var doit = confirm ("Are you sure you wish to delete this image ?");
	return doit;
}

function confirm_delSpecDate(){
	var doit = confirm ("Are you sure you wish to delete this special date with time ?");
	return doit;
}

// function used to open popup window
function openPopup(url)
{
  newWin = window.open(url, "enlarge", "menubar = 0, toolbar = 0, status = 0, resizable = 1, scrollbars=0, width = 600, height = 600");

}

function confirm_delRec(){
	var result = confirm ("Are you sure you wish to delete this record ? This will delete all the related records also.");
	return result;
}

function confirm_sendNewletter(){
	var result = confirm ("Are you sure you wish to send this newsletter ?");
	return result;
}
function selstar(val)
{
	for(var x=1;x<=val;x++)
	{
		document['i'+x].src="media/images/star_icon1.gif";
	}
}

function remstar(val)
{
	for(var x=1;x<=val;x++)
	{
		document['i'+x].src="media/images/gray_star2.gif";
	}
}

// This code was written by Tyler Akins and has been placed in the
// public domain.  It would be nice if you left this header intact.
// Base64 code from Tyler Akins -- http://rumkin.com

var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";

function encode64(input) {
   var output = "";
   var chr1, chr2, chr3;
   var enc1, enc2, enc3, enc4;
   var i = 0;

   do {
      chr1 = input.charCodeAt(i++);
      chr2 = input.charCodeAt(i++);
      chr3 = input.charCodeAt(i++);

      enc1 = chr1 >> 2;
      enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
      enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
      enc4 = chr3 & 63;

      if (isNaN(chr2)) {
         enc3 = enc4 = 64;
      } else if (isNaN(chr3)) {
         enc4 = 64;
      }

      output = output + keyStr.charAt(enc1) + keyStr.charAt(enc2) + 
         keyStr.charAt(enc3) + keyStr.charAt(enc4);
   } while (i < input.length);
   
   return output;
}

function decode64(input) {
   var output = "";
   var chr1, chr2, chr3;
   var enc1, enc2, enc3, enc4;
   var i = 0;

   // remove all characters that are not A-Z, a-z, 0-9, +, /, or =
   input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");

   do {
      enc1 = keyStr.indexOf(input.charAt(i++));
      enc2 = keyStr.indexOf(input.charAt(i++));
      enc3 = keyStr.indexOf(input.charAt(i++));
      enc4 = keyStr.indexOf(input.charAt(i++));

      chr1 = (enc1 << 2) | (enc2 >> 4);
      chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
      chr3 = ((enc3 & 3) << 6) | enc4;

      output = output + String.fromCharCode(chr1);

      if (enc3 != 64) {
         output = output + String.fromCharCode(chr2);
      }
      if (enc4 != 64) {
         output = output + String.fromCharCode(chr3);
      }
   } while (i < input.length);

   return output;
}

function setTimeEvent( id ) {
	document.getElementById(id).value = document.getElementById(id + '_hour').value + ':' + document.getElementById(id + '_minutes').value + ' ' + document.getElementById(id + '_period').value;
}

function showOccurenceType( type ) {
	document.getElementById('event_occurence_weekly_date').style.display = 'none';
	document.getElementById('event_occurence_monthly_date').style.display = 'none';
	
	if (type != null) 
		document.getElementById('event_occurence_'+type+'_date').style.display = 'block';
}