Xhtml which doctype

This script can also call functions or subroutines which contain code that you want to run when this event occurs. The onmousemove event is associated with moving the mouse around while inside a selected HTML tag element. In other words, the mouse move event occurred while the HTML element was in focus. Every time you move the mouse around the element, the script code of the onmousemove is executed. This script can also call functions or subroutines that contain code that you want to run when this event occurs.

The onmouseout event is associated with moving the mouse out of a selected HTML tag element. In other words, the mouse out event occurred while the HTML element was in focus. Every time you move the mouse out of the element, the script code of the onmouseout is executed.

The onmouseover event is associated with moving the mouse over a selected HTML tag element. In other words, the mouse over event occurred while the HTML element was in focus. Every time you move the mouse over the element, the script code of the onmouseover is executed. The onmouseup event is associated with the releasing up portion of a click of the mouse while inside a selected HTML tag element. In other words, the mouse up event occurred while the HTML element was in focus.

Think of the fairies. You may also occasionally see other doctypes on your travels, but they are not mentioned here because they are outdated. Don't use any other doctypes. Not by choice, anyway. In terms of what syntax style you should use, pick something you are comfortable with. We'd recommend that you start off using strict XML syntax, as it is guaranteed to work in any situation.

Later on you can adjust your style to suit, when you understand what you are doing a bit better. Just remember these rules:. This last rule is very important. We wouldn't recommend that you this however: old versions of Internet Explorer 6 and below switch into Quirks mode if they find the XML declaration at the start of the document, which is bad, as we looked at earlier.

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