var head = document.getElementsByTagName("head")[0];
var idName;
var idValue;
var sep = ":::::";
for (i=0 ; i<head.childNodes.length ; i++) {
	if (head.childNodes[i].nodeType == "8"){
		var comValue = head.childNodes[i].nodeValue;
		if (comValue.indexOf(sep) != -1) {
			idName = comValue.slice(0,comValue.indexOf(sep));
			idValue = comValue.slice(comValue.indexOf(sep)+sep.length,comValue.length);
			if (!idValue.match(/\S/g)) {
				document.open();
				document.write('<style type="text/css"><!--#' + idName + '{display:none;}--></style>');
				document.close();
			}
		}
	}

}