Ajax Lib

Ajax Lib

/******************************************************************************

SupeSite/X-Sapce - Ajax for SS/XS

Copyright 2001-2006 Comsenz Inc. (http://www.comsenz.com)

*******************************************************************************/



var xml_http_building_link = '请等待，正在建立连接...';

var xml_http_sending = '请等待，正在发送数据...';

var xml_http_loading = '请等待，正在接受数据...';

var xml_http_load_failed = '通信失败，请刷新重新尝试';

var xml_http_data_in_processed = '通信成功，数据正在处理中...';



function Ajax(statusId, recvType) {

var aj = new Object();

if(document.getElementById(statusId)) {

aj.statusId = document.getElementById(statusId);

} else {

var divElement = document.createElement("DIV");

divElement.className = "xspace-ajaxmsg";

divElement.style.position = "fixed";

divElement.style.right = "0";

divElement.style.top = "0";

divElement.style.background = "red";

divElement.style.color = "#FFF";

divElement.style.lineHeight = "2em";

divElement.style.padding = "0 20px";

divElement.id = statusId;

document.body.appendChild(divElement);

aj.statusId = divElement;

}



aj.targetUrl = '';

aj.sendString = '';

aj.recvType = recvType ? recvType : 'HTML';//HTML XML

aj.resultHandle = null;



aj.createXMLHttpRequest = function() {

var request = false;

if(window.XMLHttpRequest) {

request = new XMLHttpRequest();

if(request.overrideMimeType) {

request.overrideMimeType('text/xml');

}

} else if(window.ActiveXObject) {

var versions = ['Microsoft.XMLHTTP', 'MSXML.XMLHTTP', 'Microsoft.XMLHTTP', 'Msxml2.XMLHTTP.7.0', 'Msxml2.XMLHTTP.6.0', 'Msxml2.XMLHTTP.5.0', 'Msxml2.XMLHTTP.4.0', 'MSXML2.XMLHTTP.3.0', 'MSXML2.XMLHTTP'];

for(var i=0; i<versions.length; i++) {

try {

request = new ActiveXObject(versions[i]);

if(request) {

return request;

}

} catch(e) {

//alert(e.message);

}

}

}

return request;

}



aj.XMLHttpRequest = aj.createXMLHttpRequest();



aj.processHandle = function() {

aj.statusId.style.display = '';

if(aj.XMLHttpRequest.readyState == 1) {

aj.statusId.innerHTML = xml_http_building_link;

} else if(aj.XMLHttpRequest.readyState == 2) {

aj.statusId.innerHTML = xml_http_sending;

} else if(aj.XMLHttpRequest.readyState == 3) {

aj.statusId.innerHTML = xml_http_loading;

} else if(aj.XMLHttpRequest.readyState == 4) {

if(aj.XMLHttpRequest.status == 200) {

aj.statusId.style.display = 'none';

if(aj.recvType == 'HTML') {

aj.resultHandle(aj.XMLHttpRequest.responseText);

} else if(aj.recvType == 'XML') {

aj.resultHandle(aj.XMLHttpRequest.responseXML);

}

} else {

aj.statusId.innerHTML = xml_http_load_failed;

}

}

}



aj.get = function(targetUrl, resultHandle) {

aj.targetUrl = targetUrl;

aj.XMLHttpRequest.onreadystatechange = aj.processHandle;

aj.resultHandle = resultHandle;

if(window.XMLHttpRequest) {

aj.XMLHttpRequest.open('GET', aj.targetUrl);

aj.XMLHttpRequest.send(null);

} else {

aj.XMLHttpRequest.open("GET", targetUrl, true);

aj.XMLHttpRequest.send();

}

}



aj.post = function(targetUrl, sendString, resultHandle) {

aj.targetUrl = targetUrl;

aj.sendString = sendString;

aj.XMLHttpRequest.onreadystatechange = aj.processHandle;

aj.resultHandle = resultHandle;

aj.XMLHttpRequest.open('POST', targetUrl);

aj.XMLHttpRequest.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');

aj.XMLHttpRequest.send(aj.sendString);

}

return aj;

}