function changePicIndex(){
	if($("#randPicIndex").length > 0 && $("#evn_geobox").css("display") == "table"){
		document.getElementById("randPicIndex").src="/home/randNum?id="+Math.random(); 
	}
}
function checkPic(){
	var url = '/home/Ajax';
        var params = {
        	checkString:$('#checkPic').val()
        };
        return jQuery.post(url, params, callbackFun, 'json');
}
function callbackFun(data){
		var checkStatus = false;
    	if(data.num == '0'){
			checkStatus = true;
			$('#inline2').fadeOut();
			$("#edmForm").submit();
        } else {
        	changePicIndex();
			alert("圖形驗證碼輸入錯誤\n");
		}
		return checkStatus ;
}

function playAudio() {
	var iVoice  = document.getElementById("captcha-audio");
	$(iVoice).attr('src', "/home/PlayAudio?id="+Math.random());
	iVoice.play();
}