var fields2validate = new Array();
function printThis(id,action,query)
{
	var params='width=570,height=580,toolbar=no,directories=no,status=no,';
  params+= 'location=no,menubar=no,resizable=no,scrollbars=yes';
	url = "index.php?print=1";
	if (action)
	{
		url+= "&action="+ action +"";
	}
	if (action == 'search')
	{
		url+= "&query="+ query +"";
	}
	if (!action)
	{
		url+="&page="+ id +"";
	}
	
	PopupWindow = window.open(url,'print',params);
	PopupWindow.focus();
}
function SendToPrinter()
{
	window.print();
//	self.close();
	return false;
}
function validate_form( formName )
{
  var errors  = "";
  var empty   = "";
  var numbers = "";
  var emails  = "";
  var list_selection = "";
  
  if( fields2validate )
  {
    for( var i = 0; i < fields2validate.length; i++ )
    {
      name = fields2validate[i][0];
      type = fields2validate[i][1];
      label = fields2validate[i][2];
      

      if( type != 'checkbox' && type != 'list' && type != 'postcode' ) 
        str = eval('document.'+ formName +'.'+ name +'.value');
      
      //alert('name:'+ name +',type:'+ type + ',label:'+ label );
      switch( type )
      {
        case('text'):
          if(isblank(str)) empty +='-'+ label +"\n"; 
          break;
        case('textarea'):
          if(isblank(str)) empty +='-'+ label +"\n"; 
          break;
        case('comment'):
          if(isblank(str)) empty +='-'+ label +"\n"; 
          break;
        case('mail'):
          if(!isEmailValid(str)) emails +='-'+ label +"\n";
          break;
        case('select'):
          if( eval('document.'+ formName +'.'+ name +'.selectedIndex') == '0') 
          {
            list_selection +='-'+ label +"\n"; 
          }
          break;
        case('radio'):
          if( !checkRadio( formName, name ) ) list_selection +='-'+ label +"\n"; 
          break;
        case('range'):
          if(!checkRadio( formName, name )) list_selection +='-'+ label +"\n"; 
          break;
        case('checkbox'):
          if(!checkCheckBox(formName, name)) list_selection +='-'+ label +"\n"; 
          break;
        case('list'):
          if(!checkList( formName, name )) list_selection +='-'+ label +"\n"; 
          break;
        case('postcode'):
          if( eval('document.'+ formName +'.'+ name +'.selectedIndex') == '0' ) 
          {
            list_selection +='-'+ label +"\n"; 
          }
          break;
        case('country'):
          if(  eval('document.'+ formName +'.'+ name +'.selectedIndex') == '0' ) 
          {
            list_selection +='-'+ label +"\n"; 
          }
          break;
      }
    }
  }


  if( empty ) errors+= "\nThe following required field(s) are empty:\n"+ empty;
  if( numbers ) errors+="\nThe following field(s) should be numbers:\n"+ numbers;
  if( emails ) errors+="\nThe following email field(s) are not valid:\n"+ emails;
  if( list_selection ) errors+="\nYou haven't select an element in:\n"+ list_selection;

  if( errors ) 
  {
    str ="____________________________________________________________\n";
    str+="                                                            \n";
    str+="The form was not submitted because of the following error(s)\n";
    str+="Please correct these error(s) and re-submit the form\n";
    str+="____________________________________________________________\n";
    str+= errors;
    alert( str );
    return false;
  }
  return true;
}
function checkRadio( formName, fieldName )
{
    var field = eval('document.'+ formName +'.'+ fieldName );
    //check for a single list
    if(field.length ==undefined && field.checked) return true;

    for( var i = 0; i < field.length; i++ )
    {
      if( field[i].checked ) return true;
    }
    return false;
}
function checkList( formName, fieldName )
{
  var fields = eval('document.'+ formName );
  for( var i = 0; i < fields.elements.length; i++ )
  {
    if( fields.elements[i].name == fieldName+'[]' ) 
    {
      var n = fields.elements[i].selectedIndex;
      if( n == 0 || n == -1 ) return false;
      else return true;
    }
  }
  return false;
}
function checkCheckBox( formName, fieldName )
{
  //split the fieldName (spected field_check_(id) --get the field id
  var fieldNameArray = fieldName.split('_');
  var field_id = fieldNameArray[2];
  var spectedOptionName = 'field_check_'+ field_id +'_';

  var fields = eval('document.'+ formName );
  for( var i = 0; i < fields.elements.length; i++ )
  {
    cName = fields.elements[i].name;
    if( cName.indexOf(spectedOptionName) == 0 ) 
    {
      if( fields.elements[i].checked ) return true;
    }
  }
  return false;
}
function isblank(s)
{
  for( var i = 0; i < s.length; i++ )
  {
    var c = s.charAt(i);
    if(( c !=' ') && ( c!='\n') && ( c!='\t')) return false;
  }
  return true;
}

function isEmailValid(emailStr)
{
  var emailPat=/^(.+)@(.+)$/
  var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
  var validChars="\[^\\s" + specialChars + "\]"
  var quotedUser="(\"[^\"]*\")"
  var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
  var atom=validChars + '+';
  var word="(" + atom + "|" + quotedUser + ")";
  var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
  var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
  var matchArray=emailStr.match(emailPat);

  if (matchArray==null) return false;

  var user=matchArray[1];
  var domain=matchArray[2];

  if (user.match(userPat)==null) return false;
  var IPArray=domain.match(ipDomainPat)
  if (IPArray!=null) {
      // this is an IP address
      for (var i=1;i<=4;i++) {
        if (IPArray[i]>255) return false
      }
      return true
  }

  var domainArray=domain.match(domainPat)
  if (domainArray==null) return false

  var atomPat=new RegExp(atom,"g")
  var domArr=domain.match(atomPat)
  var len=domArr.length
  if (domArr[domArr.length-1].length<2 || domArr[domArr.length-1].length>3) return false;

  if (len<2) return false
  return true;
}
//place open conditional in array
var openConditionals = new Array();
var fields2validate = new Array();
function toggleRadio(field_value_id,cond_id,field_id)
{
  for( i = 0; i < openConditionals.length; i++ )
  {
    if( openConditionals[i][0] == field_id )
    {
      c = document.getElementById('conditional_'+ openConditionals[i][1]);
      c.style.display = 'none';
      openConditionals[i][0] = 0;
    }
  }

  if( cond_id == 0 ) return;

  //toogle the visibility of a conditional question
  conditional = document.getElementById('conditional_'+ field_value_id);
  conditional.innerHTML =  document.getElementById('content_'+ cond_id).innerHTML;
  conditional.style.display = 'block';

  //put this value into the array
  openConditionals[ openConditionals.length ] = new Array( field_id, field_value_id );
}
function selectConditional( selectedIndex, field_id )
{
  c = document.getElementById('conditional_'+ field_id);
  c.style.display = 'none';

  //check to see if there is a conditional
  a = eval('select_'+ field_id );
  for( i = 0; i < a.length; i++ )
  {
    if( a[i] != 0 && i == selectedIndex )
    {
      c.innerHTML = document.getElementById('content_'+a[i]).innerHTML;
      c.style.display = 'block';
    }
  }
  return;
}
function toggleCheckbox( field_id, cond_id, field_value_id )
{
  conditional = document.getElementById('conditional_'+ field_value_id);
  conditional.innerHTML =  document.getElementById('content_'+ cond_id).innerHTML;
  conditional.style.display = ( conditional.style.display =='block' )?'none':'block';
}