SharePoint (and Project Server) Shenanigans

 1 function isNumeric(sText)
 2 {
 3    var ValidChars = "0123456789.";
 4    var IsNumber=true;
 5    var Char;
 6 
 7  
 8    for (i = 0; i < sText.length && IsNumber == true; i++) 
 9       { 
10       Char = sText.charAt(i); 
11       if (ValidChars.indexOf(Char) == -1) 
12          {
13          IsNumber = false;
14          }
15       }
16    return IsNumber;
17    
18 }
19 
20 function isInteger(sText)
21 {
22    var ValidChars = "0123456789";
23    var IsNumber=true;
24    var Char;
25 
26  
27    for (i = 0; i < sText.length && IsNumber == true; i++) 
28       { 
29       Char = sText.charAt(i); 
30       if (ValidChars.indexOf(Char) == -1) 
31          {
32          IsNumber = false;
33          }
34       }
35    return IsNumber;
36    
37 }
38