Click the button to clear all the text field of the text box | on the page with Javascript. The code is as follows:

<script type="text/javascript">
<!--
function cls(){
var sum=0;
var t = document.getElementsByTagName("INPUT");
for (var i=0; i <t.length;i++){
if (t[i].type=='text'){
++sum;
t[i].value="";// empty
}
}
var sum1=0;
var t1 = document.getElementsByTagName("textarea");
for (var i1=0; i1 <t1.length;i1++){
if (t1[i1].type=='textarea'){
++sum1;
t1[i1].value="";// empty
}
}
alert(' The page of TEXT:'+sum + '  a n' + ' The page of TextArea:' + sum1 +' a ');
}
//-->
</script>