Jscritp Button not working on Iphone but works on everything else

I have a "Clock Out" buton that sets when the user clicks it, it clock out time and figures total hours. It works great on windows browsers, linux, android, etc. But not on Iphones. I've tried Opera and Safari with no luck

below is the code that works everything else..... Ant thoughts ... Yes Jscript is turned on on the Iphone browsers under settings.. Thanks in advance <img src='https://asprunner.com/forums/file.php?topicimage=1&fieldname=question&id=27347&image=1&table=forumtopics' class='bbc_emoticon' alt=':)' />
var d = new Date();

var ctrlDate = Runner.getControl(pageid,'TimeOut');

ctrlDate.setValue(d);
var CD = Runner.getControl(pageid,'TimeIn');

var DO = new Date(CD.getValue());

var DOP = Date.parse(DO)

var dp = Date.parse(d)

var TT =Runner.getControl(pageid,'Totaltime');

var cl = Runner.getControl(pageid,'closed');

// get total seconds between the times

var delta = Math.abs(dp - DOP) / 1000;
// calculate (and subtract) whole days

var days = Math.floor(delta / 86400);

delta -= days 86400;
// calculate (and subtract) whole hours

var hours = Math.floor(delta / 3600) % 24;

delta -= hours 3600;
// calculate (and subtract) whole minutes

var minutes = Math.floor(delta / 60) % 60;

delta -= minutes * 60;
// what's left is seconds

var seconds = delta % 60;

//tto =(days)+" day(s) "+(hours)+" hr(s) "+(minutes)+" min "+(seconds)+" sec "

tto =(hours)+" hr(s)"+(minutes)+" min "
TT.setValue(tto);

cl.setValue(1);
//("#saveButton12").click(); //emulate save button

pageObj.getItemButton('edit_save').click();

self.location.href = window.location
return false;