How to understand AJAXCALL
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Syntax: AJAXCALL (url,handleResponse,param); give the callback data to handleResponse for processing
Parameter: url: requested address; handleResponse: callback function; doc: the document returned by AJAX; param: additional parameter (isCache: whether cache is required, default is not cached; isXML: whether to return XML document, default HTML;method: send method, default GET;attach: extension parameter, you can pass custom values, such as id of DIV, etc.)
Example 1:
AJAXCALL ("gaogao.xml", "doPostXml", "method=POST, isXML=true, isCache=true,attach=showContent")
Function doPostXml (doc,id) {
Alert (doc) / / get the returned XML document
Alert (id) / / extension parameter, the value of attach, "showContent"
If (doc) {
$(id) = getTagValue (doc,retcode)
}
}
Example 2:
AJAXCALLl ("getnews?pid=23412", "shownews", "attach=" + $('yoyo'))
Function shownews (docu,divObject) {
If (docu) {
DivObject.innerHTML=docu
} else {
DivObject.innerHTML= "system error"
}
}
Note:
If POST data, encode the data and add it to the URL, for example:
AJAXCALL ("gaogao.php?name=" + $U ('yo') + "& sex=" + male, "yoyo2", "method=POST")
AJAXFORM
Syntax: AJAXFORM (formID,handleResponse,param); AJAX POST the form data out
Parameter: formID: form ID;handleResponse: callback function, doc returns document for AJAX; param: additional parameter (isXML: whether to return XML document, default HTML;attach: extension parameter, custom value can be passed, such as DIV id, etc.)
Example:
..
Function test3 (postform) {
AJAXFORM (postform, "yoyo3", "attach=showContent")
}
Note: the data will be encoded by escape. The PHP decoding program is provided on the submission processing page.
Additional function
$('div') is equivalent to document.getElementById (' div')
F ('div') is equivalent to document.getElementById (' div'). Value
GetTagValue (XMLDoc, Tag) gets the first occurrence value of the specified TAG in the XML document
$U (str) is equivalent to encodeURIComponent (escape (str))
GetElementsByClass (searchClass,node,tag) gets an array of all nodes under a node whose CLASS is the specified name (copyright information for this function is unknown).
Get news list | Log in | submit information | read JSON | paged list (bingo+json) [upgraded V0.2] | SELECT unlimited linkage | TREE | Select query | album (unlimited playback) | multilingual switch | query drop-down prompt | tag floating prompt (imitating NetEase news display)
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