Can you copy the contents of a richtext field that contains a picture and append it to another richtext field?  

Can you copy the contents of a richtext field that contains a picture and append it to another richtext field?  

I have just started learning APEX but have old C , basic experience.

I am trying to use a date field and time field for my object to allow smoother input of scheduling appointments. I have converted the date to startdate string and time is already a string - I can combine both and was using Valueof method to create the datetime field but the format is invalid as datetime wants yyyy-mm-dd hh:mm:ss and my string is coming out mm/dd/yyyy hh:mm AM or PM.

I guess i can break everything down to day, month, year and then reconstruct but hoped there was a less cumbersome way.  Want the date / time input to input the way the default event page does it.

Any help for this APEX novice is appreciated

I have created a custom object called PTO. I have also created an approval process for it.  How can I create a  trigger so that it automically executed the approval process i have setup as soon as a new PTO record is created(inserted).  This would behave the same way as if I manually pressed the submit approval button.

trigger PTO_Trigger on PTO__c (after insert) 
{
  for(PTO__c pto: [select id from pto__c])
  {
   Approval.ProcessSubmitRequest req1 = new Approval.ProcessSubmitRequest();
   req1.setObjectId(pto.id);
  }
  }