var buttPathMM = "img/but/but_meniu/ro/";

var buttNormMM = new Array (
	"but_home.gif",
	"but_compania.gif",
	"but_servicii.gif",
	"but_cariere.gif",
	"but_portofoliu.gif",
	"but_resurse.gif",
	"but_promotii.gif"
);

var buttOverMM = new Array (
	"but_home_roll.gif",
	"but_compania_roll.gif",
	"but_servicii_roll.gif",
	"but_cariere_roll.gif",
	"but_portofoliu_roll.gif",
	"but_resurse_roll.gif",
	"but_promotii_roll.gif"
);

	
var buttNormMM = preload_images ( buttPathMM, buttNormMM  );
var buttOverMM = preload_images ( buttPathMM, buttOverMM );

function preload_images ( img_path, img_array )
{
    var images = new Array;

    for ( var img_num=0; img_num<img_array.length; img_num++ ) {

        images[img_num] = new Image ();
        var url = img_path + img_array[img_num];
        images[img_num].src = url;
    }

    return ( images );
}

function buttonOverMM ( buttNum ) {
    if ( document.images ) {
        var objectID = document.images[ 'butMM' + buttNum ];
        objectID.src = eval( "buttOverMM[" + buttNum + "].src");
    }		
}

function buttonOutMM ( buttNum ) {
    if ( document.images ) {
        var objectID = document.images[ 'butMM' + buttNum ];
        objectID.src = eval( "buttNormMM[" + buttNum + "].src");
    }
}