Set text in JS + CSS to enter only numbers

<Script language = "JavaScript">

<! --

VaR isie = false;

VaR isff = false;

VaR Issa = false;


If (navigator. useragent. indexof ("MSIE")> 0) & (parseint (navigator. appversion)> = 4) isie = true;

If (navigator. useragent. indexof ("Firefox")> 0) isff = true;

If (navigator. useragent. indexof ("safari")> 0) Issa = true;


Function onlynumber (E)
{

Var key;

Ikeycode = Window. event? E. keycode: E. Which;

If (! (Ikeycode> = 48) & (ikeycode <= 57) | (ikeycode = 13) | (ikeycode = 46) | (ikeycode = 45) | (ikeycode = 37) | (ikeycode = 39) | (ikeycode = 8 )))

{

If (isie)
{

E. returnvalue = false;

}
Else
{

E. preventdefault ();

}
}
}

// -->

</SCRIPT>

<Input type = "text" onkeypress = "Return onlynumber (event)">


Another one:

==================================

<Input type = "text" onkeyup = "This. value = This. value. Replace (/[^ \. \ D]/g ,'');
If (this. value. Split ('.'). length> 2 ){
This. value = This. value. Split ('.') [0] + '.' + this. value. Split ('.') [1]} ">
<% = Text_field_tag "close_sight", 4,: onkeypress => "Return onlynumber (event);",: Style => "ime-mode: Disabled" %>
 

// Positive integer
Function onlynum (OBJ ){
Console. Log (obj. value );
OBJ. value = obj. value. Replace (/[^ \ D]/GI ,"");
}

// Positive and negative integers
Function numhasplus (OBJ ){
// Take the first digit of someone else
VaR T = obj. value. charat (O );

// Replace the part that is not a number
VaR _ value = obj. value. Replace (/[^ \ D]/GI ,"");

// If it is a negative number
If (t = '-'){
_ Value = '-' + _ value;
}

// Page
If (obj. value = _ value)
Return;
OBJ. value = _ value;
}

// Decimal
Function onlyfloat (OBJ ){
// Obj. value = obj. value. Replace (/[^ (? \ D +) (\. \ D +)?] /GI ,"");
VaR RegEx =/^ [+ |-]? \ D *\.? \ D * $ /;
If (RegEx. Match (obj. Value )){
Return;
}
VaR o_value = obj. value. Replace (/[^ (? \ D +) (\. \ D +)?] /GI ,"");
If (o_value = ''| o_value = NULL ){
OBJ. value = 0;
Return;
}
O_value = o_value.tostring ();
VaR o_array = o_value.split ('.');
VaR m_value = 0.0;
If (o_array.size () <= 1 ){
M_value = parsefloat (o_array [0]);
}
Else {
M_value = parsefloat (NAN (o_array [0] + '.' + o_array [1]);
}
If (obj. value = m_value)
Return;
OBJ. value = m_value;
}

<INPUT CLASS="textbox" TYPE="text" STYLE="ime-mode:disabled">

No matter what input method you use when you come in, all input is in English.

IME-mode Syntax:

IME-mode: auto | active | inactive | disabled; Value: Auto: default value. The IME status is not affected. It is the same as when the ime-mode attribute is not specified. Active: All characters entered using IME are specified. Activate the local language input method. You can still deactivate imeinactive by specifying all characters that do not use ime. Activate a non-local language. You can still deactivate imedisabled: Disable IME completely. For controls with focus (such as input boxes), you cannot activate ime.

Text-transform Syntax:

Text-transform: None | capitalize | uppercase | lowercase; Value: None: default value. Capitalize is not converted: converts the first letter of each word to uppercase, and the rest to uppercase. uppercase: converts to uppercase. lowercase: converts to lowercase.