/*   Check Variable Type
     Copy right  : wjg
     Last Modify : 2000/9/30
*/
function cl_isInteger(p_in) {
   var p_val = p_in.toString();
   for(var i=0;i<p_val.length; i++)  {
       var oneChar = p_val.charAt(i);
       if(i==0 && oneChar =="-")       continue;
       if(oneChar<"0" || oneChar>"9")  return false;
   }
   return true;
}

function cl_isPosInteger(p_in) {
   var p_val = p_in.toString();
   for(var i=0;i<p_val.length; i++)  {
       var oneChar = p_val.charAt(i);
       if(oneChar<"0" || oneChar>"9")  return false;
   }
   return true;
}

function cl_isEmpty(p_in) {
   if(p_in == null || p_in=="")  return true;
   p_val = cl_trim(p_in);
   if(p_val.length==0) return true;
   return false;
}