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function InitDocument(document)
{
setDirection();//这句报错
if (window.external.FindSymbol('DOCUMENT_FIRST_LOAD'))
{
// This function sets the default symbols based
// on the values specified in the SYMBOL tags above
window.external.SetDefaults(document);
}
// Load the document and initialize the controls with the appropriate symbol values
window.external.Load(document);
// Do additional initialization
OnInit();
}