After our upgrade to Tridion 2011, I was trying to convert Custom URLs code which are written on ASP on Tridion 2009. But in between I stuck with few API's are not available on Tridion 2011.

On Tridion 2009, below are working as expected:-

window.dialogArguments.fieldValue
window.dialogArguments.fieldType
window.dialogArguments.isMultiValued
window.dialogArguments.publicationURI

On Tridion 2011, I changed to below format but I didn't get values as expected. And also on firefox, I get few values and on IE I get values as undefined.

FireFox:

window.dialogArguments.getFields()[0].properties.fieldDefinition.localName = SingleLineTextField
window.dialogArguments.getFields()[0].isMultiValued = Undefined
window.dialogArguments.getFields()[0].publicationURI = undefined

IE:

window.dialogArguments.getFields()[0].properties.fieldDefinition.localName = Undefined
window.dialogArguments.getFields()[0].isMultiValued = Undefined
window.dialogArguments.getFields()[0].publicationURI = Undefined

Please suggest me on how to fix this.