View difference between Paste ID: wdCc9mKj and p735UP8g

 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
 
 <script>
 function validAngka(txtbox){
 	var isian = txtbox.value;
 	var angka = '0123456789';
 	var isAngka;
 	for(var i=0; i<txtbox.value.length; i++) {
 		isAngka=false;
 		for(var j=0;j<angka.length;j++){
 			if( txtbox.value.charAt(i) == angka.charAt(j) ) {
 				isAngka=true;
 			}
 		}
 		if(isAngka == false) {
 			txtbox.value = txtbox.value.replace(txtbox.value.charAt(i), '');
 			i--;
 		}
 	}
 
 	return true;
 }
 
 function validate(evt) {
   var theEvent = evt || window.event;
   var key = theEvent.keyCode || theEvent.which;
   key = String.fromCharCode( key );
 
   var regex = /[0-9]|\./;
 
   if( !regex.test(key) )
   {
 	theEvent.returnValue = false;
     	if(theEvent.preventDefault) theEvent.preventDefault();
   }/*if( regex ) */
 
 } /*function validate(evt) {*/
 
 
 </script>
 </head>
 
 <body>
 <input type="txtbox" id="input_angka" name="input_angka" value="" onkeyup="validAngka(this)" />
 <br>VS<br>
 <input type='text' onkeypress='validate(event)' />
 
 </body>
 </html>