There is one interesing feature available in help file. You could link AX Form directly from help file. There is an example in standard AX 2009 installation.

• Open form Accounts receivable / Setup / Customer groups.
• Press F1
• Open file will be opened as on following picture

• There are a links in text as Customers or Term of payments.
• When you click on those links then coresponding AX Form will be opened directly.

How to achieve same function

With creating help file it will be necesary use a Help Kit for Microsoft Dynamics AX. Next tool which I will recommand you is a HTML Help Workshop and Documentation. For linking AX Form into code there is a special function located in script_main.js file located in folder local of help kit. Syntax of this function is following:

function AxMenuItemExecute(MIType, MenuItem)
{
    try
    {
	var intMenuItemType;
	
    switch (MIType)
    {
        case "Display":
             intMenuItemType=0;
             break;
        
        case "Output":
             intMenuItemType=1;
             break;
        
        case "Report":
             intMenuItemType=2;
             break;
        
        default:
             return;  // Take no action.
             break;
    }
    
    AxLabel.RunMenuItem(intMenuItemType, MenuItem);	
    }
    catch (e) {
    //window.alert("Failed to execute menu item.");
    }
}

Using of this function is quite simple, there is an example of opening Term of payments.

<a onclick="AxMenuItemExecute('Display','paymterm')">Terms of payment</a>

To be able call this function successfull you have to add a reference to AxLabel object in each html page in your help file.

<OBJECT ID="AxLabel" CLASSID="CLSID:F5DD8727-673F-4523-869A-35AAA05AE782"></OBJECT>