Friday, March 12, 2010

Returning currently displayed index of an array Javascript...

Programmer Question

I have a simple array with x number of items. I am displaying them individually via a link click... I want to update a number that say 1 of 10. when the next one is displayed i want it to display 2 of 10 etc...



I have looked all around and my brain is fried right now... I know its simple I just cant get it out.



<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Page Title</title>
<link rel="stylesheet" href="style.css" type="text/css" media="screen" charset="utf-8"/>
<script type="text/javascript">
var quotations = new Array()
quotations[0]= "1"
quotations[1]= "2"
quotations[2]= "3"
quotations[3]= "4"
quotations[4]= "5"
quotations[5]= "6"
quotations[6]= "7"

numQuotes = quotations.length;
curQuote = 1;

function move( xflip ) {
curQuote = curQuote + xflip;
if (curQuote > numQuotes)
{ curQuote = 1 ; }
if (curQuote == 0)
{ curQuote = numQuotes ; }
document.getElementById('quotation').innerHTML=quotations[curQuote - 1];
}
var curPage = //this is where the current index should go
</script>

</head>

<body>
<div id="quotation">
<script type="text/javascript">document.write(quotations[0]);</script>
</div>
<div>
<p><a href="javascript();" onclick="move(-1)">GO back</a>
<script type="text/javascript">document.write(curPage + " of " + numQuotes)</script>
<a href="javascript();" onclick="move(1)">GO FORTH</a></p>

</div>
</body>

</html>


Find the answer here

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