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Date Check To See If Date A Is Prior To Date B By X Days


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Hi I am looking to see if there is a script that would do a date check between two to dates entered into a submission form.

 

I need to have a check to see if date A is a minimum of 2 days prior to date B. If it's not the form can not be submitted and an alert message appears.

 

I attempted to modify a couple other scripts I found but was unsuccessful at getting them to work.

 

Any assistance would be greatly appreciated!

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Hello Liz,

 

If I understand correctly what is the goal, you can try this code:

<SCRIPT LANGUAGE="JavaScript">
function checkStart()
{
var v_aDate = document.getElementById("InsertRecordA").value;
var v_bDate = document.getElementById("InsertRecordB").value;
var aDate = new Date(v_aDate);
var bDate = new Date(v_bDate);
bDate.setDate(bDate.getDate()-3);
if (aDate>bDate)
   {
      alert("date A should be a minimum of 2 days prior to date B");
      return false;
    }
}   
document.getElementById("caspioform").onsubmit=checkStart;
</SCRIPT>
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Hi Jan,

 

Thank you so much this works perfectly stand alone but it appears to be stopping my other date check script. I am pasting them both below. Perhaps you could offer some advice on getting both of these to work? They are both in the footer of my form:

 

The one from above:

 

<SCRIPT LANGUAGE="JavaScript">
function checkTenderDate()
{
var v_aDate = document.getElementById("InsertRecordTenderTurnOffDate_Web").value;
var v_bDate = document.getElementById("InsertRecordInStoreSFA_End").value;
var aDate = new Date(v_aDate);
var bDate = new Date(v_bDate);
bDate.setDate(bDate.getDate()-3);
if (aDate>bDate)
   {
      alert("Tender Turn Off date should be a minimum of 2 days prior to SFA End date");
      return false;
    }
}   
document.getElementById("caspioform").onsubmit=checkTenderDate;
</SCRIPT>
 
 
 
The one already in the form:
 
<SCRIPT LANGUAGE="JavaScript">
 function checkStart()
{
   var v_sDate = document.getElementById("InsertRecordInStoreSFA_Start").value;
   var v_eDate = document.getElementById("InsertRecordInStoreSFA_End").value;
   var sDate = new Date(v_sDate);
   var eDate = new Date(v_eDate);
   var nDate = new Date();
   nDate = Date.now();
   var setToday = sDate.getDate() + 1;
   sDate.setDate(setToday);
   setToday = eDate.getDate() + 1;
   eDate.setDate(setToday);
   if (sDate<nDate)
      {
         alert("SFA start date must be greater than today");
         return false;
      }
      else
        {
            if (eDate<sDate)
              {
                  alert("SFA end date must be greater than SFA start date");
                  return false;
              }
        }
}   
document.getElementById("caspioform").onsubmit=checkStart;
</SCRIPT>
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