AppendASCIItoUTF16("px", tmp);
tmp.AppendLiteral("px");
SizeAnchor(nsIContent *aAnchor, PRInt32 aWidth, PRInt32 aHeight){  nsCOMPtr<nsIDOMElementCSSInlineStyle> element(do_QueryInterface(aAnchor));  if (!element)    return;  nsCOMPtr<nsIDOMCSSStyleDeclaration> style;  element->GetStyle(getter_AddRefs(style));  nsCOMPtr<nsIDOMCSS2Properties> css2props(do_QueryInterface(style));  if (!css2props) {    return;  }  nsAutoString tmp;  tmp.AppendInt(aWidth);  AppendASCIItoUTF16("px", tmp);  css2props->SetWidth(tmp);  tmp.Truncate();  tmp.AppendInt(aHeight);  AppendASCIItoUTF16("px", tmp);  css2props->SetHeight(tmp);}