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Well,this script use cookies to store information about user click.All ideas and codes can help me.Thanks to all.
HTML+JavaScript:
[code=html]
<body onload=”delete_cookie (‘selected’)”></body>
<form><select>
<option value=”Empty” onclick=”ck (’empty’)”> </option>
<option value=”1″ onclick=”ck (‘1’)”>1</option>
<option value=”2″ onclick=”ck (‘2’)”>2</option>
</select>
</form>
<script>
function ck(name){
document.cookie=”selected”+”=”+escape (name);}
function get(){
var get_cookie=document.cookie.indexOf (“selected”);
if (get_cookie==-1){
alert (‘No think is selected or your cookies are disabled.’);}
else{
alert (document.cookie);}
}
function delete_cookie(name)
{
var cookie_date = new Date ( ); // current date & time
cookie_date.setTime ( cookie_date.getTime() – 1 );
document.cookie = name += “=; expires=” + cookie_date.toGMTString();}
</script>
<input type=”button” value=”View the selected” onclick=”get()”>
<input type=”button” value=”Delete information” onclick=”delete_cookie (‘selected’)”>
I write and use the script,all thinks work perfectly.