JavaScript实现点击链接跳转邮箱地址

function link(){
var olink = document.getElementById("link");
var text = olink.innerHTML;
var start = text.indexOf(">")+1;
var end = text.lastIndexOf("<");
text = text.substring(start,end);
location.href=text;
}
<a href="javascript:void(0)" onclick="link()">mailto:smvcn@yahoo.com.cn</a>