js load xml文件很慢怎么处理好
js load xml文件很慢怎么处理好
function getXmlDoc() {
var xmldoctemp;
try {
//IE浏览器
xmldoctemp = new ActiveXObject("Microsoft.XMLDOM");
} catch (err) {
try {
xmldoctemp = document.implementation.createDocument("", "", null);
var oXmlHttp = new XMLHttpRequest() ;
oXmlHttp.open( "GET", "js/city.xml", false ) ;
oXmlHttp.send(null)
return oXmlHttp.responseXML;
} catch (e) {
alert("浏览器版本太低");
}
}
//关闭异步加载
xmldoctemp.async = false;
//加载xml文件
xmldoctemp.load("js/city.xml");
return xmldoctemp;
}