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function getJsonpCallback(url){
var result = null;
var idMatch = url.match(/jsonp=(.*?)(&|$)/);
if(idMatch){
result = idMatch[1];
}else{
//jsonp didn't match, so maybe it is the jsonCallback thing.
idMatch = url.match(/callback=(.*?)(&|$)/);
if(idMatch){
result = idMatch[1];
}
}
if(result){
result = decodeURIComponent(result);
}
return result;
}
function findJsonpDone(){
var result = false;
var scriptUrls = getScriptUrls();
for(var i = 0; i < scriptUrls.length; i++){
var jsonp = getJsonpCallback(scriptUrls[i]);
if(jsonp){
eval(jsonp + "({animalType: 'mammal'});");
result = true;
break;
}
}
return result;
}
function getScriptUrls(){
//Get the script tags in the page to figure what state we are in.
var scripts = document.getElementsByTagName('script');
var scriptUrls = new Array();
for(var i = 0; scripts && i < scripts.length; i++){
var scriptTag = scripts[i];
if(scriptTag.id.indexOf("dojoIoScript") == 0){
scriptUrls.push(scriptTag.src);
}
}
return scriptUrls;
}
function doJsonpCallback(){
if(!findJsonpDone()){
alert('ERROR: Could not jsonp callback!');
}
}
//Set a timeout to do the callback check, since MSIE won't see the SCRIPT tag until
//we complete processing of this page.
setTimeout(function(){doJsonpCallback();}, 300);
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