selection structure nested within another selection structure

[4Ankit]

Hey guys i am having some trouble with nesting one selection structure
within another selection structure. At the moment i am unclear what
selection structures are and just need a simple example of a selection
structure within another selection structure. I am supposed to use
function definitions with parameters to validate a form. my code for
what i have done so far is as follows(cropped ):
function mainFunction() {
var dateFormat = (document.dateF ormat.date.valu e + " " +
document.dateFo rmat.month.valu e + ", " +
document.dateFo rmat.year.value );
window.alert("T he date is " + dateFormat);}
return; }

function checkDate( ) {
if (0<parseInt(doc ument.dateForma t.date.value) &&
parseInt(docume nt.dateFormat.d ate.value)<=31) {
return true;}
else {window.alert(" Problem with the date");
return false;} }

Basically how can i change the above checkDate function in include a
selection structure nested within another selection
structure.Event ually i will have another 2 functions which will b used
to validate the year and month the user enters. Your help would be
great :)
Have a nice day

[ASM]

4A****@gmail.co m a écrit :

Basically how can i change the above checkDate function in include a
selection structure nested within another selection
structure.Event ually i will have another 2 functions which will b used
to validate the year and month the user enters.

function checkDate( whatForm ) {
var v = document.forms[whatForm].date.value
if (0<=v && parseInt(v)<=31 ) return true;
else {
window.alert("P roblem with the date");
v.focus();
return false;
}
}

function checkMonth( whatForm ) {
var v = document.forms[whatForm].month.value
if (0<=v && parseInt(v)<=12 ) return true;
else {
window.alert("P roblem with the month");
v.focus();
return false;
}
}
function checkYear( whatForm ) {
var v = ... etc ...
}

function mainFunction( whatForm ) {
checkDat(whatFo rm);
checkMonth(what Form);
checkYear(whatF orm);
var dateFormat = (d ... etc ...
}
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