function over(imgName, imgSrc) {
	if (document.images) 
		document.images[imgName].src = imgSrc;
}

var t;
var curlyr = '';

function dropdown(status, lyr)
{
	if(status == 'in' && curlyr != lyr)
	{
		document.getElementById(lyr).className = 'show';
		clearTimeout(t);
		if(curlyr != '')
			hide(curlyr);	
		curlyr = lyr;
	}
	
	if(curlyr == lyr)
		clearTimeout(t);

	if(status == 'out')
	{
		t = setTimeout("hide('" + lyr + "')", 1000);	
	}
	
	if(status == 'in' && lyr == 'drop_whatwedo')
		document.images["droparrow"].src = "img/nav/droparrow_whatwedo.gif";
	if(status == 'in' && lyr == 'drop_whoweare')
	    document.images["droparrow"].src = "img/nav/droparrow_whoweare.gif";
	if (status == 'in' && lyr == 'drop_newspress')
	    document.images["droparrow"].src = "img/nav/droparrow_newspress.gif";	
}

function hide(lyr)
{
	document.images["droparrow"].src = "img/nav/droparrow.gif";
	document.getElementById(lyr).className = 'hide';
	curlyr = '';
}

/* Preload images used in nav */
imagenav1 = new Image();
imagenav1.src = "img/nav/droparrow_whoweare.gif";
imagenav2 = new Image();
imagenav2.src = "img/nav/droparrow_whatwedo.gif";
imagenav3 = new Image();
imagenav3.src = "img/nav/droparrow_newspress.gif";