I've updated the code again, see if this fixes it:
var s5_div_clr =
document.getElementById("s5_maincontent_left").getElementsByTagName("br");
for (var s5_div_clra=0; s5_div_clra<s5_div_clr.length; s5_div_clra++) {
if (s5_div_clr[s5_div_clra].className) {
s5_div_clr[s5_div_clra].className = "none";
s5_div_clr[s5_div_clra].style.display = "none";
s5_div_clr[s5_div_clra].style.clear = "none";
}
Regards,