// JavaScript Document
function MM_findObj(n, d) { //v4.01
	var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
	d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
	if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
	for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
	if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function showLayer(layerId) { //v2.0
	layerObj = MM_findObj(layerId);
	layerObj.style.visibility = 'visible';
}

function hideLayer(layerId) { //v2.0
	layerObj = MM_findObj(layerId);
	layerObj.style.visibility = 'hidden';
}

function reduceLayerHeight(layerId,layerHeight){ 
        layerObj = MM_findObj(layerId); 
        layerHeightAlpha = layerHeight+'px'; 
        if(layerObj.style.height != layerHeightAlpha){ 
				layerObj.style.overflow = 'hidden'; 
				layerObj.style.height = layerHeightAlpha; 
			}
}