function switchSongMusic(musicObj)
{
	var music_id = musicObj.id.substring(5);

	if (current_id == music_id || doing) {
		times++;
		if (times > TIMES_MAX) {
			redirect(return_url + "?music_id=" + music_id + url_params + "&no=" + no);
			// document.location.reload(true);
		}
		return false;
	}
	current_id = music_id;
	waitDoing(musicObj);
	
	var target = return_url + "?music_id=" + current_id + url_params + "&no=" + no;
		
	if (req_object == null) {
		req_object = getXMLRequest();
		if (!req_object) {
			redirect(target);
		}
	}
	
	if (req_object) {
		var url = "http://maplereview.org/"+mshared_path+"/"+musiccontentpage+".php?music_id=" +music_id+"&hno="+hno+"&return="+return_url+"&verifyContentNumber="+verifyContentNumber; //  + url_params
		try {
			req_object.open('GET', url, false);
			req_object.send(null);
		} catch (err) {
			redirect(target);
		}
		//alert(url);
		
		var xmlDoc=req_object.responseXML; // .documentElement;

		var music1;
		var music2;
		var music3;
		var music4;
		
		 if (moz) {
		      music1 = xmlDoc.getElementsByTagName("music1")[0];
		      if (music1) {
		      	music1 = music1.childNodes[0].data;
		      } else {
		      	redirect(target);
		      }
		      music2 = xmlDoc.getElementsByTagName("music2")[0].childNodes[0].data;
		      music3 = xmlDoc.getElementsByTagName("music3")[0].childNodes[0].data;
		      music4 = xmlDoc.getElementsByTagName("music4")[0].childNodes[0].data;
		      
		 } else if (ie) {
		    music1 = xmlDoc.selectSingleNode("/music/music1");
		    if (music1) {
		    	music1 = music1.text;
		    } else {
		    	redirect(target);
		    }
		    music2 = xmlDoc.selectSingleNode("/music/music2");
		    if (music2) music2 = music2.text;
		    music3 = xmlDoc.selectSingleNode("/music/music3");
		    if (music3) music3 = music3.text;
		    music4 = xmlDoc.selectSingleNode("/music/music4");
		    if (music4) music4 = music4.text;
  		}
		
	      if (music1) {
		var contentSpan = document.getElementById('music1');
		contentSpan.innerHTML = music1;
	      }
	      if (music2) {
		var contentSpan = document.getElementById('music2');
		contentSpan.innerHTML = music2;
	      }
	      if (music3) {
		var contentSpan = document.getElementById('music3');
		contentSpan.innerHTML = music3;
	      }
	      if (music4) {
		var contentSpan = document.getElementById('music4');
		contentSpan.innerHTML = music4;
	      }
		// musicObj.onmouseout = new Function("return false");
	}
	waitDone(musicObj);
	
	return false;
}