Cookie Approach

function up() {

    function eraseCookie(name) {
    createCookie(name,"",-1);
    }

    var header = document.getElementById("z").innerHTML;
    var body = document.getElementById("x").innerHTML;

    function createCookie(name,value,days) {
      var expires = "";
     document.cookie = name+"="+value+expires+"; path=/; domain=.wrrrite.com";
    }

    createCookie('header',header,0);
    createCookie('body',body,0);

    window.open("txt.php");
}