1 function getClass(obj,aClass){ 2     var oParent = obj.getElementsByTagName(‘*‘); 3     var result = []; 4     for(var i=0;i<oParent.length;i++){ 5         var aClassName = oParent[i].className.split(‘ ‘); 6         for(var j=0;j<aClassName.length;j++){ 7             if(aClassName[j] == aClass){ 8                 result.push(oParent[i]); 9             }10         }11     }12     return result;13 }