function updateITGscore(song_id){
	var myTable = document.getElementByID('itgtable');
	myTable.insertRow();
	var myRow = myTable.rows[myTable.rows.length];
}

function update_song_selection(td_id){
	if (td_id == "song1td"){
		var current_index = document.challengeladder.song_1.selectedIndex;
		var song = document.challengeladder.song_2.selectedIndex;
		var st = document.challengeladder.song_2[song].text;
		
		if (current_index > song) {
			var ci = current_index - 1;
		} else {
			var ci = current_index;
		}
	} else {
		var current_index = document.challengeladder.song_2.selectedIndex; 
		var song = document.challengeladder.song_1.selectedIndex;
		var st = document.challengeladde.song_1[song].text;
		
	}
	
	var params = "td_id="+td_id+"&song_title="+st+"&current_index="+ci;
	
	new Ajax.Updater(td_id,"../itg/updatesonglist.php",
		{
			method: 'post',
			parameters: params,
		}
	);

}