function setUp () {
var moreinfoElmnts = getByClass ( document,"moreinfo","div") ;
for (i=0; i < moreinfoElmnts.length; i++) {
moreinfoElmnts [i] .style.display = "none";
}
}

function moreinfoOpen (obj) {
var moreinfoElmnts = getByClass ( obj.parentNode,"moreinfo","div") ;
if ( moreinfoElmnts [0] .style.display == "block") {
moreinfoElmnts [0] .style.display = "none";
}else{
moreinfoElmnts [0] .style.display = "block";
}
}

function getByClass ( parentElmnt, className, tagName ) {
var cElmnts = new Array () ;
var elmnts = parentElmnt.getElementsByTagName ( tagName ) ;
for ( i =0; i < elmnts.length; i++ ) {
if ( elmnts [i] .className == className ) {
cElmnts.push ( elmnts [i] ) ;
}
}
return cElmnts;
}