how to use javascript to do a " flexiable" validation

[kang jia]

hi

now i am using javascript to do a "flexiable" validaion, what i mean "flexiable" is user can choose which one they would like fill in in the bank but at least they must enter one.
in my page, i offered three kind of phone NO to let user enter in, one is Home phone NO, the other is Hand phone NO, the last one is Office Pone No. they can enter in "one or More" of these phone NO.

however my validation have problem and i cant probably check the correctness of their phone no.
the following is my current javascript

:
 
<script language="JavaScript">
 
<!--
 
function validate_form ( )
{
    valid = true;
    if ( document.regForm.uName.value == "" )
    {
        alert ( "Please fill in the 'Your name' box." );
        regForm.uName.focus();
        valid = false;
    }
 
 else if ( ( document.regForm.Hphone.value=="" )
    && ( document.regForm.HP.value =="") && ( document.regForm.Ophone.value == "") )
    {
        alert ( "Please enter any one of the three phone NO" );
        valid = false;
 
        if ( ((/^(\((\+\d{2})?\))?[56]\d{7}$/).test(regForm.Hphone.value) ==true)){
        alert ( "the Home phone No entered is not valid" );
        valid = true;
        }
 
        else if (((/^(\((\+\d{2})?\))?[89]\d{7}$/).test(regForm.HP.value) ==true)){
             alert ( "the HP phone No entered is not valid" );
        valid = true;
            }
 
            else if (((/^(\((\+\d{2})?\))?[3456]\d{7}$/).test(regForm.Ophone.value) ==true)){
             alert ( "the Office phone No entered is not valid" );
        valid = true;
        }
 
 
    }
 
       return valid;
}
 
 
//-->
</script>

i have tired very hard to do this, but it seems just cant work well, can anyone help me with this. i would like to solve this ASAP as the project deadline is near the corner. thanks in advance

[pbmods]

Moving to JavaScript....

[acoder]

You need to close the else-if started on line 17 on line 22.

[kang jia]

You need to close the else-if started on line 17 on line 22.

in fact, i have a nested if ..else inside this else if { ...}
the code is in the following ( i only take out the part i got problem with):

 
  else if ( ( document.regForm.Hphone.value=="" )
    && ( document.regForm.HP.value =="") && ( document.regForm.Ophone.value == "") )
    {
        alert ( "Please enter any one of the three phone NO" );
        valid = false;
 
    if ( ((/^(\((\+\d{2})?\))?[56]\d{7}$/).test(regForm.Hphone.value) ==true)){
        alert ( "the Home phone No entered is not valid" );
        valid = true;
        }
 
        else if (((/^(\((\+\d{2})?\))?[89]\d{7}$/).test(regForm.HP.value) ==true)){
             alert ( "the HP phone No entered is not valid" );
        valid = true;
            }
 
            else if (((/^(\((\+\d{2})?\))?[3456]\d{7}$/).test(regForm.Ophone.value) ==true)){
             alert ( "the Office phone No entered is not valid" );
        valid = true;
        }
 
    }
 

it seems did not validate wrong entered NO, and i would like it to be flexible, which means user can choose which one they want to enter among these three phone NO.

if possible, can reply as ASAP as my project time line is near, it is a bit urgent. thanks for your kind help :)

[acoder]

Try:

...test(document.forms["regForm"].OPhone.value // and so on