Form Tags

INPUT

The <INPUT> tag, as its name implies, provides some type of data entry point in the form depending on the value of its TYPE attribute: 
checkbox and radio specify selectable options:  
<INPUT TYPE=checkbox>  <INPUT TYPE=radio>

reset and submit make the INPUT field a button to clear the form or send its contents to the gateway:
<INPUT TYPE=reset>  <INPUT TYPE=submit> 

HIDDEN is used to conceal a field that has a preset value that will never change but is unknown to the gateway.  

TEXT specifies that a data input field be displayed:
<INPUT TYPE="TEXT"> 

IMAGE displays an image and when the user selects a spot, the coordinates are passed to the gateway.

INPUT is an empty tag, like IMG, with no end tag.

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