rem: s.filter = "alpha(opacity=0)"; 
add: tw_setOpacity(box, 0); 
context: function tw_setLayerTransparent(box) {    var s = box.style;        if (tw_isIE) {        //NOTE: IE allows clicks to propagate if the background-color is transparent.        //However, if the background is white and the opacity is zero, it works like it should.        s.filter = "alpha(opacity=0)";        s.backgroundColor = "white";    } else {        s.backgroundColor = tw_COLOR_TRANSPARENT;            }}
meta: 5515	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5515/cfa7cacc22cf44240d4fdac2a16ac0b70fe21708/Startup.js/clean/src/thinwire/render/web/resources/Startup.js