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Editorial Team
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Asked: 2026-05-31T13:10:06+00:00

If someone could point out what I’m doing wrong I’d be eternally grateful! I

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If someone could point out what I’m doing wrong I’d be eternally grateful! I can’t seem to get the right combination of parenthesis – how to I combine multiple conditions in one statement?? Obviously I don’t expect anyone to modify the code below, I just want to show what I’m trying to achieve.

If someone can explain the logic to me that’d be great

Thanks 

function ChangeButton()
{
if 
((document.forms[0].IPR.value == "") && (document.forms[0].FNM1.value == "") && (document.forms[0].FNM1.value == "") && (document.forms[0].SURN.value == "") && (document.forms[0].GEND.value == "") && (document.forms[0].DOB.value == "") && (document.forms[0].CRIM.value == "") && (document.forms[0].ETHC.value == "") && (document.forms[0].DSBC.value == "") && (document.forms[0].MARK1.value == "") && (document.forms[0].NATC.value == "") && (document.forms[0].COBC.value == "") && (document.forms[0].COD.value == "") && (document.forms[0].FIVE.value == "") && (document.forms[0].PERM.value == "") && (document.forms[0].VISF.value == "") && (document.forms[0].USD.value == "") && (document.forms[0].HAD1.value == "") && (document.forms[0].HAD3.value == "") && (document.forms[0].HTEL.value == "") && (document.forms[0].HAEM.value == "") && (document.forms[0].FEES.value == "") && (document.forms[0].REF1TIT.value == "") && (document.forms[0].REF1ORG.value == "")     && (document.forms[0].REF1POS.value == "") && (document.forms[0].REF1AL1.value == "") && (document.forms[0].REF1AL3.value == "") && (document.forms[0].REF1AL5.value == "") && (document.forms[0].REF1EMA.value == "") && (document.forms[0].DISC.value == ""))
&&
((document.forms[0].PERM.value == "") && (document.forms[0].FIVE.value == "N")) 
&&
((document.forms[0].AGNT.value == "") && (document.forms[0].USD.value == "Y")) 
&&
((document.forms[0].CSTRT.value == "") && (document.forms[0].USD.value == "N") && (document.forms[0].CENDD.value == "") && (document.forms[0].CAD1.value == "") && (document.forms[0].CAD3.value == "") && (document.forms[0].CAD4.value == "") && (document.forms[0].CAPC.value == "") && (document.forms[0].CTEL.value == ""))
&&
((document.forms[0].AWDB.value == "") && (document.forms[0].FEES.value == "") && (document.forms[0].FEES.value == "Private Funds Self or Family") && (document.forms[0].AWDS.value == ""))
&&
((document.forms[0].RESEARCH.value == "Y") && (document.forms[0].RESSRT.value == "") && (document.forms[0].RESMOA.value == "") && (document.forms[0].RESAR.value == "") && (document.forms[0].RESDIS.value == ""))
{
document.getElementById('submitbutton').className = 'enabled'; 
}
else {
document.getElementById('submitbutton').className = 'disabled'; 
}
}
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1 Answer

  1. Editorial Team

    I see

    ...&&...  document.forms[0].FIVE.value == ""
...&&... document.forms[0].FIVE.value == "N"

    This never be true

    EDIT

    I think you must change approach, try something like this:

    function ChangeButton()
{
    var frm = document.forms[0];
    var neverEmpty = ['field1','field2','field3'];
    var mustBe     = {field3:'Y', field4:'N'};

    var status = 'ok';

    for(var i = 0; i<neverEmpty.length; i++) {
        if(frm[neverEmpty[i]] == '') {
        status = 'ko';
        break;
    }
}

for(myField in mustBe) {
    if(frm[myfield] != mustBe[myField]) {
        status = 'ko';
        break;
    }
}
document.getElementById('submitbutton').className = status=='ok'? 'enabled' : 'disabled';

    }

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