var score_layers = new Array( "layer1", "layer2", "layer3", "layer4", "layer5")
var score_objs = new Array( score_layers.length );
function score_getObjs()
{
    var nObjMax = score_layers.length;
    for( nCount = 0; nCount < nObjMax; nCount++ )
    {
        score_objs[nCount] = document.getElementById( score_layers[nCount] );
    }
}
function MenuChange( layerID )
{
    score_objs[0] != null ? "" : score_getObjs();
    if( layerID == score_objs[0].id )
    {
        score_objs[0].style.display = "";
        score_objs[1].style.display = "none";
		score_objs[2].style.display = "none";
		score_objs[3].style.display = "none";
		score_objs[4].style.display = "none";
	
		
    }
    else if( layerID == score_objs[1].id )
    {
        score_objs[0].style.display = "none";
        score_objs[1].style.display = "";
		score_objs[2].style.display = "none";
		score_objs[3].style.display = "none";
		score_objs[4].style.display = "none";
		
		
    }
	else if( layerID == score_objs[2].id )
    {
        score_objs[0].style.display = "none";
        score_objs[1].style.display = "none";
		score_objs[2].style.display = "";
		score_objs[3].style.display = "none";
		score_objs[4].style.display = "none";
		
	
    }
	else if( layerID == score_objs[3].id )
    {
                score_objs[0].style.display = "none";
                score_objs[1].style.display = "none";
		score_objs[2].style.display = "none";
		score_objs[3].style.display = "";
		score_objs[4].style.display = "none";
		
		
    }
	else if( layerID == score_objs[4].id )
    {
        score_objs[0].style.display = "none";
        score_objs[1].style.display = "none";
		score_objs[2].style.display = "none";
		score_objs[3].style.display = "none";
		score_objs[4].style.display = "";
		
	
  
		
    }
	
}