function check_input_clear( text, element ){
    if ( text == element.value ) {
        element.value="";
        element.focus();
    }
}


function equalheights(){
    var elements = new Array();
    var highest = 0;
    for(i=0;i<arguments.length;i++){
        elements.push( document.getElementById(arguments[i] ));
        if ( elements[i].offsetHeight > highest )
            highest = elements[i].offsetHeight;

    }
    for( var i = 0; i < elements.length; i++ ){
        elements[i].style.height = highest + 'px';
    }
}

function expandingHeights( ){
    var tag = arguments[0];
    var ourid = arguments[1];
    var containers = new Array();
    var pixhighest = 0;
    for( var i = 2; i < arguments.length; i++ ){
        var elm = document.getElementById( arguments[i] );
        var expanderlist = elm.getElementsByTagName( tag );
        var expander = null;
        for( var n = 0; n < expanderlist.length; n++ ){
            if ( expanderlist[n].id == ourid ){
                expander = expanderlist[n];
                break;
            }
        }
            
        if ( elm.offsetHeight > pixhighest ){
            pixhighest = elm.offsetHeight;
        }
        containers.push( new Array( elm, expander, elm.offsetHeight ) );
    }
    for( var i = 0; i < containers.length; i++ ){
        var dif =  pixhighest - containers[i][2];
        containers[i][1].style.height = dif +'px';
    }
}