JS input 数字验证代码

/*

**@控制控件只能输入数字,含-(负号).(小数点)

**@Inline HTML: <ELEMENT ... onkeypress="javascript:onlyNumber()" style="ime-mode:disabled"> For Input

**@Event property: object.attachEvent("onkeypress",onlyNumber);object.style.imeMode = "disabled";

**@Author:wangwq@atools

*/

function onlyNumber(){

if(!(((window.event.keyCode >= 48) && (window.event.keyCode <= 57))

|| (window.event.keyCode == 13) || (window.event.keyCode == 46)

|| (window.event.keyCode == 45))){

window.event.keyCode = 0 ;

}

}

// 本函数用于限制文本输入框中只能输入数字"0"到"9"

//@Inline HTML: <ELEMENT ... onkeypress="javascript:JHshNumberText()" style="ime-mode:disabled"> For Input

//@Event property: object.attachEvent("onkeypress",JHshNumberText);object.style.imeMode = "disabled";

function JHshNumberText()

{

if ( !(((window.event.keyCode >= 48) && (window.event.keyCode <= 57)) || (window.event.keyCode == 13)))

{

window.event.keyCode = 0 ;

}

}

<input name="aa" type="text" onkeypress="javascript:JHshNumberText()" style="ime-mode:disabled" ondragenter="javascript:return false;" onpaste="return false">
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