Error found by PRE_check_changeToSubmit() when attempting to set a-table to have the type of 'submit'.

function changeToSubmit(id)	Change HTML Element to Submit Button
OK, change plain button into Submit button	Plain-Button now a submit button
Error, change a-table into a Submit button	a-table cannot be a Submit button

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HTML elements can have their types checked.

a_div = document.querySelector('div')
div_type = type_czech.typeFinal(a_div)    //HTMLDivElement

HTML elements can also be queried for their prototypes chain.

a_div = document.querySelector('div')
div_protos=type_czech.typeProtos(a_div)//["HTMLDivElement","HTMLElement 

And finally, HTML elements can also be asked their object type.

a_div = document.querySelector('div')
isa_HTMLElem = type_czech.typeIsA(a_div, 'HTMLElement')  // true

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Two errors are found by PRE_check_alterImgHref() when trying to set a-div to have a location address, in blue text. And, when incorrectly setting a-picture's src location to a local anchor in green text.

function alterImgHref(id, addr)	Alter Image or Href Address
OK, alter a Link's Address from cnn.com to xe.com	was CNN.com, now XE.com
OK, alter Image's Address from BEFORE to AFTER
Error, alter a-div's Address	a-div is a div
Error, alter a-picture's Address to a # Local Anchor

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