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================STEP 1 - COPY CODE BELOW INTO HEADER======================
<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
var checkflag = "false";
function check(field) {
if (checkflag == "false") {
for (i = 0; i < field.length; i++) {
field[i].checked = true;}
checkflag = "true";
return "Uncheck All"; }
else {
for (i = 0; i < field.length; i++) {
field[i].checked = false; }
checkflag = "false";
return "Check All"; }
}
// End -->
</script>

================STEP 1 - COPY CODE ABOVE INTO HEADER======================

================STEP 2 - COPY CODE BELOW INTO BODY========================
<form name=myform>
<b>Your Favorite Scripts & Languages</b><br>
<input type=checkbox name=list value="1">Java<br>
<input type=checkbox name=list value="2">JavaScript<br>
<input type=checkbox name=list value="3">ASP<br>
<input type=checkbox name=list value="4">HTML<br>
<input type=checkbox name=list value="5">SQL<br><br>
<input type=button value="Check All" onClick="this.value=check(this.form.list)">
</form>

================STEP 2 - COPY CODE ABOVE INTO BODY=========================

    INSTRUCTIONS
  • Step 1 - Paste code inside body <HEAD></HEAD> of HTML page
  • Step 2 - Paste code inside body <BODY></BODY> of HTML page
  • Change form name and field value to suit your pre-existing form

    DESCRIPTION
  • This will let you check and uncheck all checkboxes from one button.

 

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