function createbordertxtreq(control)

      {
        
         control.className ="txtBoxReqFocus";

      }
     function removebordertxtreq(control)

      {
        control.className ="txtBoxReq";
      }

     function createbordertxtopt(control)

      {
         control.className ="txtBoxOptFocus";

      }      
      
     function removebordertxtopt(control)

      {
        control.className ="txtBoxOpt";
      }
      
     function createborderddlreq(control)
      {
         control.className ="ddlReqFocus";

      }
      
      
     function removeborderddlreq(control)

      {
        control.className ="ddlReq";
      }
      
      function createborderddlopt(control)

      {
         control.className ="ddlOptFocus";

      }
      
      
     function removeborderddlopt(control)

      {
        control.className ="ddlOpt";
      }

      function GetPlumberName(lbl, txt) 
      {
          document.getElementById(lbl).innerHTML = document.getElementById(txt).value;
      }

      function CopyTxtToLbl(lbl, txt)
      { 
        document.getElementById(lbl).innerHTML =  document.getElementById(txt).value;
      }

      function CopyDdlToTxt(txt, ddl) 
      {
          if(document.getElementById(ddl).value!='0')          
            document.getElementById(txt).value = document.getElementById(ddl).options[document.getElementById(ddl).selectedIndex].innerHTML
      }

      function CopyTxtToTxt(txtD, txtS) 
      {
          document.getElementById(txtS).value = document.getElementById(txtD).value;
      }

      function isNumeric(val) 
      {
        var numeric = true;
        var chars = "0123456789.";
        var len = val.length;
        var character = "";
        for (i=0; i<len; i++) 
        {   character = val.charAt(i); 
           if(chars.indexOf(character)==-1) 
             { numeric = false; } 
        }
        return numeric;
      }
      
      function  add(txt1,txt2,lbl)
      {
      
            var txtval1 = document.getElementById(txt1).value;
            var txtval2 = document.getElementById(txt2).value;
      
            var lbl = document.getElementById(lbl);
             lbl.innerHTML = "";
       
           if(txtval1.length==0 && txtval2.length == 0)
              {lbl.innerHTML = "";}
           else if( txtval1.length==0 && isNumeric(txtval2) )   
           {lbl.innerHTML = txtval2;}
           else if ( txtval2.length==0 && isNumeric(txtval1) )   
           {lbl.innerHTML = txtval1;}
           else if (isNumeric(txtval1) && isNumeric(txtval2) )
           {
             var total = +document.getElementById(txt1).value + +document.getElementById(txt2).value;
             lbl.innerHTML = total;
           }
           else if ( isNumeric(txtval1) )
           {lbl.innerHTML = txtval1;}
           else if ( isNumeric(txtval2) )
           {lbl.innerHTML = txtval2;}
           
           
       }