function gradesDetails(F){var E=F.parentNode.parentNode.getElementsByTagName("div");var A=E.length;for(var D=0;D<A;D++){var C=E[D];if(C.className.indexOf("grades-details-off")+1){var B=C.className.indexOf("grades-details-on")+1;C.className=(B)?C.className.replace(" grades-details-on",""):C.className+" grades-details-on"}}var G=F.firstChild;G.src=(B)?"/i/plus.gif":"/i/minus.gif"}
