<!DOCTYPE HTML>
<html>
<head>
<style>
input[name='chb-agree']:disabled{
outline: 1px solid red;
}
</style>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script>
$(document).ready(function(){
$("input[name='chb-agree']").attr('disabled',true).removeAttr('id')
var tarea=$("#txt-sign")
setTimeout( function(){tarea.scrollTop(3000);},20)
var tareaScroll;
var timerscroll;
setTimeout( function(){
tareaScroll = tarea.scrollTop();
//alert(tareaScroll);
tarea.scrollTop(0);
$("#txt-sign").bind('scroll',function () {
clearTimeout(timerscroll);
timerscroll=setTimeout( function(){ // очистка чрезмерных срабатываний;
if(tarea.scrollTop()>=tareaScroll-12) {
$("input[name='chb-agree']").removeAttr('disabled').attr('id','chb-agree');
$("#txt-sign").ubind('scroll');
}
},20)
});
},20)
});
</script>
</head>
<body>
<form action="">
<div class="verification-form-wrap sign">
<textarea id="txt-sign" name="txt-sign" cols="70" rows="10">
TEMPORARY REGISTRATION AGREEMENT
1. I have read andagree to Siberian Health Compensation Plan and Siberian Health products andservices as set forth in official
Siberian Health literature
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
</textarea>
<div class="chb-wrapper">
<input type="checkbox" id="chb-agree" name="chb-agree" />
<label for="chb-agree" class="lb-agree">I accept all terms and conditions of the contact (please read contract)</label>
</div>
</form>
</body>
</html>