***简单：如何限制输入框输入的内容必须是整数***

[herogsl]

比如：输入54，可以提交成功，但输入2.5或者ABC就弹出一个对话框说请重新输入

谢谢~~~急！

[binny0532]

function fstcheck()
{
temp=form.XXXX.value;

for (nIndex=0; nIndex<temp.length; nIndex++)
{
cCheck = temp.charAt(nIndex);
if (!(IsDigit(cCheck)))
{
alert("Please input integer in the required number box");
form.XXXX.focus();
return false;
}
}
}
function IsDigit(cCheck)
{
return (('0'<=cCheck) && (cCheck<='9'));
}

[shyslysky]

<input type=text id=t1 value="">
<script>
function toSubmit(){
var obj=document.getElementById("t1")
if(parseInt(obj.value)!=obj.value){
alert("not integer!")
obj.focus()
obj.select()
return false
}
}

</script>

[JK_10000]

<input onblur="if(this.value!='' && parseInt(this.value)+'dd'!=this.value+'dd') {alert('Error');this.select();this.focus();}" value=0x00>