var key = 1;
var time = 6000;
var contents = "";
var checkit = " - ";
var shp=new Array("C","C#","D","D#","E","F","F#","G","G#","A","A#","B");
var flt=new Array("C","Db","D","Eb","E","F","Gb","G","Ab","A","Bb","Cb");
var adj = new Array("nv","nv",2,4,5,7,9,11,"nv",14,"nv",17,"nv",21); //nv is no value
var adjminor = new Array("nv","nv",2,3,5,7,8,10,"nv",14,"nv",17,"nv",20); //nv is no value
function doit(i){
var index = document.keys.time.selectedIndex;
time = document.keys.time[index].value;
time = time.valueOf();
var keytype = document.keys.majmin.selectedIndex;
keyindex = document.keys.majmin[keytype].value;
if (i == 1){
for (k=0;k < 12;k++){
if (document.notes.elements[k].checked){
checkit = document.notes.elements[k].value;
}
}
if (key == -1){
reply = o+" in the key of "+shp[s]+" "+keyindex+" is "+shp[ans]+". You chose "+checkit+"";
}else{
reply = o+" in the key of "+flt[s]+" "+keyindex+" is "+flt[ans]+". You chose "+checkit+"";
}
contents = "";
contents += reply+"
Click GO to try again
";
document.getElementById('lesson1quiz').innerHTML = contents;
checkit = " - ";
//r = eval("newwin.document");
//r.write("
");
//r.write("");
//r.write(reply+"
");
//r.write("
");
//r.close();
return;
}
s = Math.round((Math.random()*11)).valueOf(); //value used to select a scale
o = Math.round((Math.random()*13)).valueOf(); //value used to select a member of the scale
if (o < 2){o=2;}
if (o == 8){o=7;}
if (o == 10){o=9;}
if (o == 12){o=13;}
if (keyindex == "major"){
var d = adj[o];
}else{
var d = adjminor[o];
}
if (key == 1){
if ((s==0)||(s==3)||(s==5)||(s==8)||(s==10)){ //for sharp keys: adjust if s points to c, d#, f, g#, a#
s++;
}
ans = s+d;
if ((ans > 11)&&(ans < 24)){ans -= 12;}
if (ans > 23){ans -= 24;}
}else{
if ((s==2)||(s==4)||(s==7)||(s==9)){ //for flat keys: adjust if s points to d, e, g, a
s--;
}
ans = s+d;
if ((ans > 11)&&(ans < 24)){ans -= 12;}
if (ans > 23){ans -= 24;}
}
//newwin = window.open("","win1","width=375,height=200");
//newwin.document.write("test");
//newwin.document.write("");
//w = eval("newwin.document");
//w.write("