Insert Image or logo in a form

Dear Sir

I have create on form having two field "Name" and "Image"

and create a function module and use above code

Code as follows

string Pipeline_Management.Image(string name)

{

imagelnk = Image[Name = input.name].Image;

imagelnk = imagelnk.replaceAll("/sharedBy/appLinkName/","https://creator.zoho.com" + zoho.appuri);

imagelnk = imagelnk.replaceAll("viewLinkName","#View:Image_Report");

imagelnk = imagelnk.replaceAll("fieldName","Image");

return imagelnk;

}

But the return statement is not showing image and same in any form

Please help

Regards

Shiv