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// ---------------------------------------- // Wrapper function for constructing a request object. // Parameters: // reqType: The HTTP request type, such as GET or POST. // url: The URL of the server program. // asynch: Whether to send the request asynchronously or not. // ---------------------------------------- function httpRequest(reqType,url,asynch) { // Mozilla-based browsers if (window.XMLHttpRequest) { request = new XMLHttpRequest(); } else if (window.ActiveXObject) { request = new ActiveXObject("Msxml2.XMLHTTP"); if (!request) { request = new ActiveXObject("Microsoft.XMLHTTP"); } } // Request could still be null if neither ActiveXObject // initialization succeeded if (request) { initReq(reqType,url,asynch); } else { alert("Your browser does not permit the use of all " + "of this application's features!"); } } // ---------------------------------------- // Initialize a request object that is already constructed // ---------------------------------------- function initReq(reqType,url,asynch) { // Specify the function that will handle the HTTP response request.onreadystatechange = handleResponse; request.open(reqType,url,bool); request.send(null); }
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