Mine

//this function generates round borders with javascript and css

	function bordes() {
		var divs = document.getElementsByTagName('div');
		var divs_redondeados = [];
		
		for (var i = 0; i < divs.length; i++)
		{
			if(/\bborde\b/.exec(divs[i].className))
			{
				divs_redondeados[divs_redondeados.length] = divs[i];
			}
		}
		
		for (var i = 0; i < divs_redondeados.length; i++)
		{
			var div = divs_redondeados[i];
			
			div.className = div.className.replace('borde', '');
			
			if(/\bt\b/.exec(div.className))
			{
				var tr = document.createElement('div');
				tr.className = 'borde';
				div.parentNode.replaceChild(tr, div);
			}
			
			var tl = document.createElement('div');
			var br = document.createElement('div');
			
			tr.appendChild(tl);
			tl.appendChild(br);
			
			br.appendChild(div);		
		}
	}
	
	window.onload = bordes;