how could i save my textbox value in localmemory if possible? thanks for help
addOne = function(){ document.myForm.inputbox.value = document.myForm.inputbox.value*1 + 1 ; }   <form name="myForm" action="" method=""> 
<input name="inputbox" readonly type="text" id="textarea" value="0" style="border-radius:15px; font-size:100;border-color:black;font-family:hotdog; color:white; border: 0px none;background-color:#0099FF;"></form>
</div>
    <div style="width:800px; margin:0 auto;">
        <img src="diamond.
  png"  width="700"onclick="addOne()" class="change"> 
     
    