code: function(el, styleProperty){
              if(el.currentStyle){
                  return el.currentStyle[styleProperty];
              }else if(window.getComputedStyle){
                  var cssProperty = styleProperty.replace(/([A-Z])/g, "-$1").toLowerCase();
                  var computedStyle = window.getComputedStyle(el, "");
                  return computedStyle.getPropertyValue(cssProperty);
              }else{
                  return "";
              }
          }
docs: Retrieve the computed style from a specified element.
  
  @param el
  @param styleProperty
  @return The computed style value.
  @type String