Create this at the top of your script:
code:
var Array = new Array();
Then put this code to where the random thing is:
code:
var random = Math.floor(Math.random()*10 /* 10 lyrics.. */);
for(i=0;i<Array.length;i++){
if(Array[random] != i){
Array[random] = i;
return;
}
}
i'm not sure if that will work..