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<html> <body> <script type="text/javascript"> function convertField(field) { if (document.form1.convertUpper.checked) { field.value=field.value.toUpperCase() } } function convertAllFields() { document.form1.fname.value=document.form1.fname.value.toUpperCase() document.form1.lname.value=document.form1.lname.value.toUpperCase() } </script> <form name="form1"> First name: <input type="text" name="fname" onChange="convertField(this)" size="20" /> <br /> Last name: <input type="text" name="lname" onChange="convertField(this)" size="20" /> <br /> Convert fields to upper case <input type="checkBox" name="convertUpper" onClick="if (this.checked) {convertAllFields()}" value="ON"> </form> </body> </html>
Edit the text above, and click on the button to see the result.

Edit the text above, and click on the button to see the result.