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rashu
i have put this code for only entering integer value in text box however error occured.. if(document.formname.textbox1.value!=="") { var rn,i;
rn=document.formname.textbox1.value;
for(i=0i
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July 26, 2012 at 4:47 PM
Here is a javascript code that validate s the number.
<html>
<script>
function validate(){
if(document.form.num.value == ""){
alert("Please enter number!" );
document.form.num.focus();
return false;
}
var con=document.form.num.value;
var ex = new RegExp(/^\d+$/);
var t=ex.test(con);
if(!t){
alert("Enter only Number .");
document.form.num.focus();
return false;
}
}
</script>
<form name="form" method="post" onsubmit="return validate();">
<pre>
Enter Number: <input type="text" name="num">
<input type="submit" value="Check">
</pre>
</form>
</html>
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