function GetVerifyCode(e){
    document.getElementById("ltlScript").innerHTML = "";
    var JSONP=document.createElement("script");  
    JSONP.type="text/javascript";  
    JSONP.src= "http://passport.108sq.cn/getvalidatecode.aspx?rt=1&r="+Math.random();  
    document.getElementById("ltlScript").appendChild(JSONP); 
} 

function GetVerifyCodeImg(codeID){
     document.getElementById("hidVerifyCodeID").value = codeID;
     document.getElementById("imgVerifyCode").src = "http://passport.108sq.cn/ValidateCode.aspx?CodeID="+ codeID; 
     document.getElementById("imgVerifyCode").style.display = "";
}



document.write('<span id="ltlScript"></span>');
document.write('<input type="hidden" name="verifycodeid" id="hidVerifyCodeID" value="" />');
document.write('<img src="" id="imgVerifyCode" alt="看不清,换一张" onclick="GetVerifyCode();" style="cursor: pointer; display: none;" />');

GetVerifyCode();