function PHPFMG(){
    function $( id ){
        return document.getElementById(id);
    }
    
    function addLabelEvents(){
        var labels = document.body.getElementsByTagName('LABEL');
        for( var i = 0, N = labels.length; i < N; i ++ ){
            var e = labels[i];
            if( -1 != String(e.className).indexOf('form_choice_text') ){
                var oid = e.getAttribute('oid'); 
                if( !oid ) continue;

                e.onmouseout = function(){ this.className = 'form_choice_text'; };
                e.onmouseover = function(){ this.className = 'form_choice_text form_choice_over'; };
                e.onclick = function(){
                    try{
                        var oid = this.getAttribute('oid'); 
                        var O = document.getElementById(oid);
                        O.checked = !O.checked;
                    }
                    catch(E){};
                };
            }; // if
        }; // for
    } 


    function addFieldBlockEvents(){
        var divs = document.body.getElementsByTagName('DIV');
        for( var i = 0, N = divs.length; i < N; i ++ ){
            var e = divs[i];
            if( -1 != String(e.className).indexOf('field_block') ){
                e.onmouseout = function(){  if( String(this.className).indexOf('form_error_highlight') == -1 ) this.className = 'field_block'; };
                e.onmouseover = function(){ if( String(this.className).indexOf('form_error_highlight') == -1 ) this.className = 'field_block field_block_over'; };
            }; // if
        }; // for
    } 

    
    this.highlight_fields = function( fields ){
        var A = fields.split(',');
        for( var i = 0, N = A.length; i < N; i ++ ){
            var E = $( A[i] + '_div' );
            if( E ){
                E.className += ' form_error_highlight'; 
            };
        };
    };
    
    this.choice_clicked = function( id ){
        $(id).checked = !$(id).checked ;
    };
    
    this.init = function(){
        addLabelEvents();
        addFieldBlockEvents();
    }
    
}
var fmgHandler = new PHPFMG();