function pagenavigate(pageurl) {
        document.location = pageurl;
    }

    //Credit http://techpatterns.com/downloads/javascript_cookies.php for this cookie handling code
     function moveon(pageid) {
         // add any condition here that checks for a value
         var found = Get_Cookie('precautionaryList');
         var icheck = document.getElementById('chkAgree');
         if (icheck.checked) {
             if (found !== null) {
                 //document.getElementById('bodyRightColumnFooter').style.visibility = 'hidden';
                 //document.getElementById('licenseprompt').style.visibility = 'hidden';
                 pagenavigate('chemicals.aspx?pid=' + pageid);
             }
             else {
                 //document.getElementById('bodyRightColumnFooter').style.visibility = 'visible';
                 var today = new Date();
                 today.setTime(today.getTime());
                 if (icheck.checked) {
                     Set_Cookie('precautionaryList', today, 30, '/');
                     pagenavigate('chemicals.aspx?pid=' + pageid);
                 }
                 else {
                     document.getElementById('licenseprompt').style.visibility = 'visible';
                 }
             }
         }
         else {
             document.getElementById('licenseprompt').style.visibility = 'visible';
             Delete_Cookie('precautionaryList','/');
         }
     }
     function checkforlicense() {
         var found = Get_Cookie('precautionaryList');
          if (found == null) {
            pagenavigate('default.aspx');
         }
        
     }
     
     function setupform() {
         var found = Get_Cookie('precautionaryList');
         if (found !== null) {
             var icheck = document.getElementById('chkAgree');
             icheck.checked = true;
             //document.getElementById('bodyRightColumnFooter').style.visibility = 'hidden';
             //document.getElementById('licenseprompt').style.visibility = 'hidden';
         }
     }
     function Get_Cookie(check_name) {
         // first we'll split this cookie up into name/value pairs
         // note: document.cookie only returns name=value, not the other components
         var a_all_cookies = document.cookie.split(';');
         var a_temp_cookie = '';
         var cookie_name = '';
         var cookie_value = '';
         var b_cookie_found = false; // set boolean t/f default f

         for (i = 0; i < a_all_cookies.length; i++) {
             // now we'll split apart each name=value pair
             a_temp_cookie = a_all_cookies[i].split('=');


             // and trim left/right whitespace while we're at it
             cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, '');

             // if the extracted name matches passed check_name
             if (cookie_name == check_name) {
                 b_cookie_found = true;
                 // we need to handle case where cookie has no value but exists (no = sign, that is):
                 if (a_temp_cookie.length > 1) {
                     cookie_value = unescape(a_temp_cookie[1].replace(/^\s+|\s+$/g, ''));
                 }
                 // note that in cases where cookie is initialized but no value, null is returned
                 return cookie_value;
                 break;
             }
             a_temp_cookie = null;
             cookie_name = '';
         }
         if (!b_cookie_found) {
             return null;
         }
     }
     function Set_Cookie(name, value, expires, path, domain, secure) {
         // set time, it's in milliseconds
         var today = new Date();
         today.setTime(today.getTime());
         /*
         if the expires variable is set, make the correct
         expires time, the current script below will set
         it for x number of days, to make it for hours,
         delete * 24, for minutes, delete * 60 * 24
         */
         if (expires) {
             expires = expires * 1000 * 60 * 60 * 24;
         }
         var expires_date = new Date(today.getTime() + (expires));

         document.cookie = name + "=" + escape(value) +
((expires) ? ";expires=" + expires_date.toGMTString() : "") +
((path) ? ";path=" + path : "") +
((domain) ? ";domain=" + domain : "") +
((secure) ? ";secure" : "");
     }
     // this deletes the cookie when called
     function Delete_Cookie(name, path, domain) {
         if (Get_Cookie(name)) document.cookie = name + "=" +
((path) ? ";path=" + path : "") +
((domain) ? ";domain=" + domain : "") +
";expires=Thu, 01-Jan-1970 00:00:01 GMT";
     }