function load() {
	var imgs = load.arguments;
	if (document.images) {
		if (document.preload == null) document.preload = new Array();
		var i = document.preload.length;
		for (var j = 0; j < imgs.length; j++) {
			document.preload[i] = new Image();
			document.preload[i++].src = imgs[j];
		}
	}
}

function restore(){ 
	var i, x, a = document.swaps; 
	if( a ) for( i = 0; i < a.length; i++)
		if( a[i].oldSrc ) a[i].src=a[i].oldSrc;
}

function swap(){ 
	var i, j = 0, a = swap.arguments; 
	document.swaps = new Array; 
	for( i = 0; i < ( a.length - 1 ); i += 2 ){
		document.swaps[j++] = a[i];
		if( !a[i].oldSrc ) a[i].oldSrc = a[i].src;
		a[i].src = a[i + 1];
	}
}

function myShowHide(myId, blnVisible)
{
	//alert(myId+': '+blnVisible);
	var itm;
	if (document.getElementById)
	{
		itm = document.getElementById(myId)
		if (blnVisible)
		{
			itm.style.display = ''; 
			itm.style.visibility = 'visible';
		}
		else
		{
			itm.style.display = 'none'; 
			itm.style.visibility = 'hidden';
		}
	}
	else if (document.all)
	{
		itm = eval('document.all.' + myId + '.style');
		if (blnVisible)
		{
			itm.style.display = ''; 
			itm.style.visibility = 'visible';
		}
		else
		{
			alert('error unexpected');
			itm.style.display = 'none'; 
			itm.style.visibility = 'hidden';
		}
	}
}
function myUpdateSection(strDrug, blnVisible)
{
	myShowHide('span'+strDrug, blnVisible);
	myShowHide('expand'+strDrug, !blnVisible);
	myShowHide('collapse'+strDrug, blnVisible);
}