function WindowOnload(f) {
	var prev = window.onload;
	window.onload = function() { if(prev) prev(); f(); }
}
function resizeSponsorLinks() {
	var nMinDisplayHeight = 10;
	if (document.getElementById("sponsorlink1").offsetHeight < nMinDisplayHeight) { document.getElementById("sponsorlink1").style.display = 'none'; }
	if (document.getElementById("sponsorlink2").offsetHeight < nMinDisplayHeight) { document.getElementById("sponsorlink2").style.display = 'none'; }
	if (document.getElementById("sponsorlink3").offsetHeight < nMinDisplayHeight) { document.getElementById("sponsorlink3").style.display = 'none'; }
	if (document.getElementById("sponsorlink4").offsetHeight < nMinDisplayHeight) { document.getElementById("sponsorlink4").style.display = 'none'; }
	if (document.getElementById("sponsorlink5").offsetHeight < nMinDisplayHeight) { document.getElementById("sponsorlink5").style.display = 'none'; }
	document.getElementById("sponsorlinks_wrapper").style.visibility = 'visible';
}
WindowOnload(resizeSponsorLinks);