function highlight() {
var elements = document.getElementsByTagName("input");
  for (i=0; i < elements.length; i++) {

     if(elements[i].getAttribute('type')=="text") {
       elements[i].onfocus=function() {
         this.style.borderColor='#5789C6';
         this.style.backgroundColor='#ffff66';
       };
       elements[i].onblur=function() {
         this.style.borderColor='#AABBCC';
         this.style.backgroundColor='#E3F1FF';
      };

    }
  }
}

window.onload = highlight;