var el;
window.onload=function() {
   el=document.getElementById('status');
   el.onmouseover=function() {
   changeText('hidebgteaser','showbgteaser')
 }
   el.onmouseout=function() {
   changeText('showbgteaser','hidebgteaser');
  }
 }
function changeText(cl1,cl2) {
   document.getElementById('span1').className=cl1;
   document.getElementById('span2').className=cl2;
}