var imgPath = JSON.stringify(api.pageParam.imgPath);
alert("1"+imgPath);
alert("2"+imgPath.length);
console.log(imgPath);
alert("3"+imgPath.substring(1,imgPath.length));
var imgpath = imgPath.substring(1,imgPath.length-1);
console.log(imgpath);
document.getElementById("img1").src=imgpath;