Text box Checking
I want to Write only the word A-Z in a text box What is the code?
View Answers
April 22, 2011 at 3:01 PM
<html>
<script>
function checkString(text) {
if(isNaN(text)){
return 1;
}
else{
alert("Please enter a valid string. The only characters accepted are A - Z and a - z");
return 0;
}
}
function validate(){
if(document.form.st.value == ""){
alert( "Please enter string." );
document.form.st.focus();
return false;
}
if(checkString(document.form.st.value)==false){
document.form.st.focus();
document.form.st.value ="";
return false
}
return true;
}
</script>
<form name="form" method="post" onsubmit="return validate();">
Enter Name: <input type="text" name="st"><br>
<input type="submit" value="Add" name="button">
</form>
</html>
April 22, 2011 at 3:04 PM
<html>
<script>
function checkString(text) {
if(isNaN(text)){
return 1;
}
else{
alert("Please enter a valid string. The only characters accepted are A - Z and a - z");
document.getElementById("st").focus();
document.getElementById("st").value ="";
return 0;
}
}
</script>
Enter Name:   <input type="text" id="st" onkeyup="checkString(this.value);">
</html>
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