If mania
Some people enjoy if
statements and have an unhealthy obsession with redundant parentheses…
// this function checks which class and subject u have selected
// and set the value of book accordingly and the name of file that will be open after button clicked
if((document.test.tclass.value==1) && (document.test.tsubject.options[sind].text=="English"))
{
document.test.tbook.options[0].text="..Select Book Title..";
document.test.tbook.options[1].text="Marigold";
document.test.tbook.options[1].value="textbook.htm?aeen1=0-10"
}
else if((document.test.tclass.value==1) && (document.test.tsubject.options[sind].text=="Mathematics"))
{
document.test.tbook.options[0].text="..Select Book Title..";
document.test.tbook.options[1].text="Math-Magic";
document.test.tbook.options[1].value="textbook.htm?aemh1=0-13"
document.test.tbook.options[2].text="Ganit Ka Jaadu";
document.test.tbook.options[2].value="textbook.htm?ahmh1=0-13"
}
else if((document.test.tclass.value==1) && (document.test.tsubject.options[sind].text=="Hindi"))
{
document.test.tbook.options[0].text="..Select Book Title..";
document.test.tbook.options[1].text="Rimjhim";
document.test.tbook.options[1].value="textbook.htm?ahhn1=0-23"
}
else if((document.test.tclass.value==1) && (document.test.tsubject.options[sind].text=="Urdu"))
{
document.test.tbook.options[0].text="..Select Book Title..";
document.test.tbook.options[1].text="Ibtedai Urdu-I";
document.test.tbook.options[1].value="textbook.htm?aulb1=0-27"
document.test.tbook.options[2].text="Riyazi";
document.test.tbook.options[2].value="textbook.htm?auri1=0-17"
}
/// ... it continues!
Some lookup table, e.g. in JSON, would probably suffice for managing this type of functionality.