DOM is accesible for every page. You just need to find out how to access form elements (have a look at its source code, use some tool and point the form element etc...). This is basicly the same as detecting HWND or a class in Windows application, but DHTML has its own way to uniquely identify its elements. Various javascript frameworks around (prototype, jquery, mootools) have nice way to get element, using $ symbol, so $$("a") will get array of anchors and $("#myVar") will get element with ID myVar. Form elements most definitely have id's so this is probably the best method (GetElementByID DOM function). Check it out how jquery does here.I don't get it... for example if i want to fill the form from <!-- w -->www.blabla.com<!-- w -->,
Once you got the way to get the element, you can manipulate them with DHTML commands the very same as you can take Edit handle and set its text.
There is example in Ask for Help I did for smb recently.Would you mind to give me a little example?