var GWCIFrameSrc = "http://www.guwan.com.cn/CreateDiv.html?";

function KuaYuLogin(isbackDiv, IframeWidth, IframeHeight, PageName) {

    PageName = encodeURIComponent("http://user.guwan.com.cn" + PageName);
    if (!document.getElementById("GWCIframe"))
    {
        var iframe = document.createElement("iframe");
        iframe.style.display = "none";
        iframe.id = "GWCIframe";
        iframe.src = GWCIFrameSrc + "OpreatType=_DisplayDiv" + "&IframeWidth=" + IframeWidth + "&IframeHeight=" + IframeHeight + "&PageName=" + PageName + "&_=" + Math.random();
        document.getElementsByTagName("body")[0].appendChild(iframe); 
    }else
    {
        document.getElementById("GWCIframe").src = GWCIFrameSrc + "OpreatType=_DisplayDiv" + "&IframeWidth=" + IframeWidth + "&IframeHeight=" + IframeHeight + "&PageName=" + PageName + "&_=" + Math.random();
    }
   // alert(document.getElementById("GWCIframe").src);
}

function KuaYuClose() {
    if (!document.getElementById("GWCIframe")) {
        var iframe = document.createElement("iframe");
        iframe.style.display = "none";
        iframe.id = "GWCIframe";
        iframe.src = GWCIFrameSrc + "OpreatType=KuaYuClose" + "&_=" + Math.random();
        document.getElementsByTagName("body")[0].appendChild(iframe);
    } else {
    document.getElementById("GWCIframe").src = GWCIFrameSrc + "OpreatType=KuaYuClose" + "&_=" + Math.random();
    }    
 }