rem: Opa_node.style.background = "transparent"; Opa_node.style.removeProperty("background",false); 
add: Opa_node.removeAttribute("bxe_mark"); 
context: function BX_node_clean_bg(){    if (BX_opa_node != null)    {        var Opa_node = BX_getElementByIdClean(BX_opa_node,document);        Opa_node.style.background = "transparent";        Opa_node.style.removeProperty("background",false);        BX_opa_node = null;    }}
meta: 791	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/791/23e4752e13536f63516c1ece4dd47e95e4cd7f52/bitfluxeditor_core.js/clean/src/webapp/lenya/resources/misc/bitflux/bxe/js/bitfluxeditor_core.js