purpose of <code>function reload(form)</code>

[nahelna]

function reload(form)
{
var val=form.cat.options[form.cat.options.selectedIndex].value;
self.location='postquery.php?cat=' + val ;
}

am really new to this i want to know how it functions -which form does it refer to? -what is cat?(an object of?) -options? infact evrthing thanx

[Perspx]

Hi, The porpose of this is script is to get the value of a select box and then go to a page based on this selection. For form.cat.options[form.cat.options.selectedIndex].value: form is a form that is called "form" and "cat" is a select box. What this line does is get the value of the selected option in this select box, which is what form.cat.options.selectedIndex is for - the []s show that form.cat.options is an array. This value is stored in a variable called "val". What the next line does redirect the current browser window to "postquery.php" with the argument "cat" being the val variable that was assigned in the first line. For example, if "val" was "data", then the browser window would be redirected to "postquery.php?cat=data". Hope this helps, --Perspx

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