function get_topbg()
{
    var ranNum= Math.round(Math.random()*(topbg.length-1));
	if(topbg[ranNum])
	    return ranNum;
	else
		return "";
}

function get_sidebarimg()
{
    var ranNum= Math.round(Math.random()*(sidebarimg.length-1));
	if(sidebarimg[ranNum])
	    return sidebarimg[ranNum];
	else
		return "";
}

function get_charities()
{
    var ranNum= Math.round(Math.random()*(charities.length-1));
	if(charities[ranNum])
	    return charities[ranNum];
	else
		return "";
}

function get_rhctables()
{
	var ret = '';
    var ranNum= Math.round(Math.random()*(tables.length-1));
	if(tables[ranNum])
	{
		ret += tables[ranNum];
		var count = tables.length-1;
		if(count > 5)	count = 5;
		for(var i=0;i < count;i++)
		{
			if(ranNum < tables.length-1)
				ranNum++;
			else
				ranNum = 0;
				
			ret += '<br>' + tables[ranNum];
		}	
		
	    return ret;
	}
	else
		return "";
}

function get_medhead() {
    var ranNum = Math.round(Math.random()*(medhead.length-1));
	if(medhead[ranNum]) {
	    return {img: medhead[ranNum], txt: courtesy[ranNum]};
	} else {
	    return {img: "images/missing_image.jpg", txt: "Image not available"};
	}
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

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 MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}