JS: only number (INT, float) can be input

// Only numbers can be entered
Function checkinputisint (keycode)
{
If (keycode> 95 & keycode <106)
| (Keycode> 47 & keycode <58)
| Keycode = 8
| Keycode = 46
| Keycode = 37
| Keycode = 39
| Keycode = 9
| Keycode = 13 ){
}
Else {
Return false;
}
}

Function checkinputisfloat (keycode, E)
{
If (keycode> 95 & keycode <106)
| (Keycode> 47 & keycode <58)
| Keycode = 8
| Keycode = 46
| Keycode = 37
| Keycode = 39
| Keycode = 9
| Keycode = 13 ){
}
Else if (keycode = 110 || keycode = 190 ){
If (E. value = "" | E. value. indexof (".")! =-1 ){
Return false;
}
}
Else {
Return false;
}
}

---- Using this function in HTML (only contact with htmlcontrol )---

<Input type = "text" id = "test" onkeydown = "event. returnvalue = checkinputisfloat (event. keycode, this)">

--- Just like this:

Onkeydown = "event. returnvalue = checkinputisfloat (event. keycode, this )"
Onkeydown = "event. returnvalue = checkinputisint (event. keycode )"

All keycode