function collapseElem(obj)
      {
         var el = document.getElementById(obj);
         el.style.display = 'none';
      }


      function expandElem(obj)
      {
         var el = document.getElementById(obj);
         el.style.display = '';
      }


         // collapse all elements, except the first one
         function collapseAll()
         {
            var numFormPages = 1;

            for(i=2; i <= numFormPages; i++)
            {
               currPageId = ('mainForm_' + i);
               collapseElem(currPageId);
            }
         }


         function validateField(fieldId, fieldBoxId, fieldType, required)
         {
            fieldBox = document.getElementById(fieldBoxId);
            fieldObj = document.getElementById(fieldId);

            if(fieldType == 'text'  ||  fieldType == 'textarea'  ||  fieldType == 'password'  ||  fieldType == 'file'  ||  fieldType == 'phone'  || fieldType == 'website')
            {  
               if(required == 1 && fieldObj.value == '')
               {
                  fieldObj.setAttribute("class","mainFormError");
                  fieldObj.setAttribute("className","mainFormError");
                  fieldObj.focus();
                  return false;              
               }

            }


            else if(fieldType == 'menu'  || fieldType == 'country'  || fieldType == 'state')
            {  
               if(required == 1 && fieldObj.selectedIndex == 0)
               {           
                  fieldObj.setAttribute("class","mainFormError");
                  fieldObj.setAttribute("className","mainFormError");
                  fieldObj.focus();
                  return false;              
               }

            }


            else if(fieldType == 'email')
            {  
               if((required == 1 && fieldObj.value=='')  ||  (fieldObj.value!=''  && !validate_email(fieldObj.value)))
               {           
                  fieldObj.setAttribute("class","mainFormError");
                  fieldObj.setAttribute("className","mainFormError");
                  fieldObj.focus();
                  return false;              
               }

            }



         }

         function validate_email(emailStr)
         {     
            apos=emailStr.indexOf("@");
            dotpos=emailStr.lastIndexOf(".");

            if (apos<1||dotpos-apos<2) 
            {
               return false;
            }
            else
            {
               return true;
            }
         }


         function validateDate(fieldId, fieldBoxId, fieldType, required,  minDateStr, maxDateStr)
         {
            retValue = true;

            fieldBox = document.getElementById(fieldBoxId);
            fieldObj = document.getElementById(fieldId); 
            dateStr = fieldObj.value;


            if(required == 0  && dateStr == '')
            {
               return true;
            }


            if(dateStr.charAt(2) != '/'  || dateStr.charAt(5) != '/' || dateStr.length != 10)
            {
               retValue = false;
            }  

            else  // format's okay; check max, min
            {
               currDays = parseInt(dateStr.substr(0,2),10) + parseInt(dateStr.substr(3,2),10)*30  + parseInt(dateStr.substr(6,4),10)*365;
               //alert(currDays);

               if(maxDateStr != '')
               {
                  maxDays = parseInt(maxDateStr.substr(0,2),10) + parseInt(maxDateStr.substr(3,2),10)*30  + parseInt(maxDateStr.substr(6,4),10)*365;
                  //alert(maxDays);
                  if(currDays > maxDays)
                     retValue = false;
               }

               if(minDateStr != '')
               {
                  minDays = parseInt(minDateStr.substr(0,2),10) + parseInt(minDateStr.substr(3,2),10)*30  + parseInt(minDateStr.substr(6,4),10)*365;
                  //alert(minDays);
                  if(currDays < minDays)
                     retValue = false;
               }
            }

            if(retValue == false)
            {
               fieldObj.setAttribute("class","mainFormError");
               fieldObj.setAttribute("className","mainFormError");
               fieldObj.focus();
               return false;
            }
         }