function chkNumeric(FieldList) { 
    if (FieldList == "") {
               return true; 
    } 

var splitIndex = 0 ; 
var splitArray = new Array() ; 
var string = FieldList ; 
var separator = ',' ; 

while ((string.length > 0) && (separator.length > 0)) { 

    var i = string.indexOf(separator) ; 
    if ((!i) && (separator != string.substring(0,separator.length))) break ; 
    if (i == -1) { 
        splitArray[splitIndex++] = string ; 
        break ; 
    } 

    splitArray[splitIndex++] = string.substring(0,i) ; 
    string = string.substring(i+separator.length,string.length) ; 
} 

 for (var i=0 ; i < splitIndex ; i++) { 
    var Field = eval ("document.myform." + splitArray[i]) ;
    var val = Field.value;
    var txt = "";

    for (var icnt=0;icnt<val.length;icnt++) {
         if (val.charAt(icnt) != " ") {
    txt += val.charAt(icnt);
    }
    }
    Field.value = txt ;

    for (var cnt = 0; cnt < Field.value.length; cnt++) { 
        var ch = Field.value.substring(cnt, cnt + 1) ;
        if (ch < "0" || ch > "9") { 
            alert(Field.value + " is invalid. " + "Please enter a numeric value - no decimals."); 
            Field.focus();
            return false; 
            break;    
        } 
    } 
   
  } 
  return true;
 }