function unselectAllProvince(provinceChecked)
   {  
      if (provinceChecked.value != document.forms[0].Provinces[0].value)
      {
         document.forms[0].Provinces[0].checked = false;      
      } 
      else
      {
         for(x=1; x < document.forms[0].Provinces.length; x++)
         {
            document.forms[0].Provinces[x].checked = false;          
         }
      }
   }
                  
   function unselectAllEducationLevel(educationLevelChecked)
   {  
      
      if (educationLevelChecked.value != document.forms[0].EducationLevel[0].value)
      {
         document.forms[0].EducationLevel[0].checked = false;      
      } 
      else
      {
         for(x=1; x < document.forms[0].EducationLevel.length ; x++)
         {
            document.forms[0].EducationLevel[x].checked = false; 
         
         }
      }
      
   }
   
   function ReverseSelection(z)
   {
     document.forms[0].Provinces[z].checked = !document.forms[0].Provinces[z].checked;
     if (document.forms[0].Provinces[z].checked==true) {document.forms[0].Provinces[0].checked = false;}
   }