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add multiple item per page (create a booklet with 4 or for more item / page) #3

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add multiple item per page (create a booklet with 4 or for more item / page) #3

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f347e4f
add multiple item per page
iibm1 Mar 9, 2017
896baf9
reformat using unix
iibm1 Mar 9, 2017
446a92f
reformat
iibm1 Mar 9, 2017
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32 changes: 23 additions & 9 deletions index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@
function calculate()
{
duplex = document.getElementById('duplex').value;
itempp = parseInt(document.getElementById('itempp').value);
if (duplex == "1") {
document.getElementById("doublesided").style.display = "block";
document.getElementById("singlesided").style.display = "none";
Expand All @@ -19,15 +20,19 @@
var duplexlist = '';
var side1list = '';
var side2list = '';

for (var i = 1; i < count / 2; i = i + 2) {
var new1 = (count - i+1).toString() + ',' + i.toString() + ',';
var new2 = (i + 1).toString() + ',' + (count - i).toString() + ',';
side1list = side1list + new1;
side2list = side2list + new2;
duplexlist = duplexlist + new1 + new2;

for (var i = 1; i < count / 2 ; i += itempp) {
for (j = 1; j < itempp ; j += 2) {
new1 = (count-i+1-j+1).toString() + ',' + (i+j-1).toString() + ',';
side1list += new1;
duplexlist += new1;
}
for (j = 1; j < itempp ; j += 2) {
new2 = (i+j).toString() + ',' + (count-i-j+1).toString() + ',';
side2list += new2;
duplexlist += new2;
}
}

// delete last comma
side1list = side1list.substr(0, side1list.length - 1);
side2list = side2list.substr(0, side2list.length - 1);
Expand Down Expand Up @@ -81,6 +86,15 @@ <h3>Preparation</h3>
<option value="1">Yes</option>
</select>
</li>
<li>
Define items per page :
<select id="itempp" onchange="calculate();">
<option value="2">2</option>
<option value="4">4</option>
<option value="6">6</option>
<option value="8">8</option>
</select>
</li>
</ol>

<h3>Printing</h3>
Expand All @@ -101,4 +115,4 @@ <h3>Printing</h3>
<a href="https://github.com/georgjaehnig/booklet-page-calculator"><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://camo.githubusercontent.com/38ef81f8aca64bb9a64448d0d70f1308ef5341ab/68747470733a2f2f73332e616d617a6f6e6177732e636f6d2f6769746875622f726962626f6e732f666f726b6d655f72696768745f6461726b626c75655f3132313632312e706e67" alt="Fork me on GitHub" data-canonical-src="https://s3.amazonaws.com/github/ribbons/forkme_right_darkblue_121621.png"></a>

</body>
</html>
</html>