/** menus script **/

function VivoMenus()
{
}

VivoMenus.prototype.setClass = function(el, cl)
{
    if( el !== undefined ) {
	if( el.className !== undefined )
	    el.className = cl;
	else
	    el.setAttribute( "class", cl );
    }
}

VivoMenus.prototype.mouseover = function(link)
{
    var divBtns = document.getElementById( "divButtons" );
    if( !divBtns ) return;

    for( var j = 0; j < divBtns.childNodes.length; j ++ ) {
	var elImg = divBtns.childNodes[j];
	if( !elImg ) continue;
	if( !elImg.getAttribute ) continue;
	var iix = elImg.getAttribute( "ix" );
	if( iix !== undefined ) {
	    if( iix == link.getAttribute( "ix" ) ) {
		this.setClass( elImg, "up" );
		break;
	    }
	}
    }
}

VivoMenus.prototype.mouseout = function(link)
{
    var divBtns = document.getElementById( "divButtons" );
    if( !divBtns ) return;

    for( var j = 0; j < divBtns.childNodes.length; j ++ ) {
	var elImg = divBtns.childNodes[j];
	if( !elImg ) continue;
	if( !elImg.getAttribute ) continue;
	var iix = elImg.getAttribute( "ix" );
	if( iix !== undefined ) {
	    this.setClass( elImg, "down" );
	}
    }
}

var menus = new VivoMenus();