// This is a library for verifying that certain edit boxes
// have values or not

function byID( id )
{
   return document.getElementById( id );
}

function checkEmailFieldUsingId( id, desc )
{
   var value = $('#'+id).val();

   value = value.toLowerCase();

   var format = /^[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,6}$/i;

   if ( value.match(format) )
   {
      return true;
   }

   $('#'+id).focus();

   alert( desc + ' is not a valid email.' );

   return false;
}

function checkNameFieldUsingId( id, desc )
{
   var value = $('#'+id).val();

   value = value.toLowerCase();

   var format = /^[a-z.,\s-]+$/i;

   if ( value.match(format) )
   {
      return true;
   }

   $('#'+id).focus();

   alert( desc + ' can only contain letters, commas, spaces, dots (.), and hyphens (-).' );

   return false;
}

function checkPhoneFieldUsingId( id, desc )
{
   var value = $('#'+id).val();
   var format = /^[0-9.\s()-]+$/;


   if ( value.match(format) )
   {
      return true;
   }

   $('#'+id).focus();

   alert( desc + ' can only contain numbers, spaces, dots (.), parenthesis, and hyphens (-).' );

   return false;
}

function checkRequiredFields_restoreOriginalBorderColor(ids )
{
   for ( var i = 0; i < ids.length; i++ )
   {
      var id = ids[i];

      var input = $('#'+id);

      input.css( { "border-color" : input.attr('orig-css') } );
   }
}

function checkRequiredFields_init( ids )
{
   for ( var i = 0; i < ids.length; i++ )
   {
      var id = ids[i];

      var input = $('#'+id);

      input.attr('orig-css', input.css("border-left-color") );
   }
}

function checkRequiredFields_checkInputHasVal( ids )
{
   var retval = true;

   for ( var i = 0; i < ids.length; i++ )
   {
      var id = ids[i];

      var input = $('#'+id);

      if ( !inputHasVal( id ) )
      {
         hilightInput( id );

         retval = false;
      }
   }

   return retval;
}

//



function trim( str )
{
   return str.replace(/^\s+|\s+$/g,"");
}

// used in verification of forms
// checks that an input element with id of 'id' has a value in it
function inputHasVal( id )
{
   var input = $('#'+id);
   var val = input.val();

   if ( val == null || trim(val).length == 0 )
      return false;

   return true;
}

function isEmpty( val )
{
   if ( val == null || trim(val).length == 0 )
      return true;

   return false;
}


function hilightInput(id)
{
   var input = $('#'+id);

   // input.attr('orig-css', input.css("border-left-color") );

   input.css( {border: "1px solid #b81d24"} );

   input.focus();

   $('#required-error-' + id ).fadeIn(750);
}

function asJTarget( event )
{
   var target;

   if ( !event )
      var event = window.event;

   if ( event.target )
      target = event.target;

   else if ( event.srcElement )
      target = event.srcElement;

   if ( target.nodeType == 3) // defeat Safari bug
      target = target.parentNode;

   return $(target);
}

function toggleAttr( qthis, toggleAttrname )
{
  if ( qthis.attr( toggleAttrname ) == 'true' )
  {
    qthis.attr( toggleAttrname, 'false' );
  }
  else
  {
    qthis.attr( toggleAttrname, 'true' );
  }
}


function bool( qthis, attrname )
{
  return qthis.attr( attrname) == 'true';
}

function setbool( qthis, attrname, val )
{
   if ( val )
      qthis.attr( attrname, 'true' );
   else
      qthis.attr( attrname, 'false' );
}

function isOldIE()
{
   var ie55 = (navigator.appName == "Microsoft Internet Explorer" && parseInt(navigator.appVersion) == 4 && navigator.appVersion.indexOf("MSIE 5.5") != -1);
   var ie6 = (navigator.appName == "Microsoft Internet Explorer" && parseInt(navigator.appVersion) == 4 && navigator.appVersion.indexOf("MSIE 6.0") != -1);

   return ( jQuery.browser.msie && (ie55 || ie6) );
}


function closeIncompatibleWarning()
{
   $.post( "/a/home/disableIncompatibleWarning" );

   $('#incompatible').fadeOut(300);
}