function roundImages()
{
    var divs = document.getElementsByTagName('div');
    var illos = [];

    for (var i=0; i<divs.length; i++) {
        if (/\billo-big\b/.exec(divs[i].className) || 
	    /\billo-small\b/.exec(divs[i].className)) {
	    illos[illos.length] = divs[i];
	}
    }

    for (i=0; i<illos.length; i++) {
	isBig = (/\billo-big\b/.exec(illos[i].className))
	if (illos[i].getElementsByTagName("a").length != 0) {
	    illo = illos[i].getElementsByTagName("a")[0];
	} else {
	    illo = illos[i].getElementsByTagName("img")[0];
	}

	cornerTopDiv = illos[i].insertBefore(document.createElement("div"), 
					  illo);

	cornerTopDiv.className = 'corner-top';

	cornerBottomDiv = illos[i].insertBefore(document.createElement("div"), 
	    illo);
	cornerBottomDiv.className = 'corner-bottom';
    }
}

addLoadEvent(roundImages);