jquery/plugins/compat/compat.js

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// Since we're using Prototype's $ function,
// be nice and have backwards compatability
if ( typeof Prototype != "undefined" ) {
if ( $a.constructor == String ) {
var re = new RegExp( "[^a-zA-Z0-9_-]" );
if ( !re.test($a) ) {
$c = $c && $c.documentElement || document;
if ( $c.getElementsByTagName($a).length === 0 ) {
var obj = $c.getElementById($a);
if ( obj ) { return obj; }
}
}
} else if ( $a.constructor == Array ) {
return $.map( $a, function(b){
if ( b.constructor == String ) {
return document.getElementById(b);
}
return b;
});
}
}
// TODO: Remove need to return this
for ( var i in $.fn ) {
if ( self[i] !== null )
self["_"+i] = self[i];
self[i] = $.fn[i];
}
if ( typeof Prototype != "undefined" && $a.constructor != String ) {
if ( $c ) $a = self.get();
for ( var k in self ) {(function(j){
try {
if ( !$a[j] )
$a[j] = function() {
return $.apply(self,self[j],arguments);
};
} catch(e) {}
})(k);}
return $a;
}