I need an experience web application developer to execute my task properly. He needs to be experience in javascript too. This task needs to be done ASAP and needs to have a skype to have a good workflow with me.

First Task:
I need someone to code a button to enable user to add a shortcut icon on their homescreen of their mobile, (please see screenshot)

I setup my html button like this Code:



I'm not sure how to code it.






Second Task:

I need code to be compatible with the iPhone and Android. I'm trying to create a toggling checkbox, that when a user check the checkbox it will show the button, if it's uncheck it will show the disabled version ('#disableBtn')

Javascript + Jquery
Code:

$(function()
{
$('#agreed').change(function()
{
if ($(this).attr("checked"))
{
$('#disableBtn').hide();
$('#button').css('display', 'block');
return;
}
$('#disableBtn').show();
$('#button').css('display', 'none')
});
})

HTML
Code:



Button
Disabled

CSS
Code:

#button { display: none }


Attached Images




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