Алексей Юдов

.red-border {
  border: 1px solid red;
}

if($day1 == 'Суббота' or $day1 == 'Воскресенье') {
  // some else code here...
  echo "<td class='red-border'>...</td>";
} else {
  // some else code here...
  echo "<td>...<td>"
}

<button id="btn-1">First button</button>
<button id="btn-2">Second button</button>
<div id="my-modal-box">
  This is may be modal window component, use css ...
</div>

function buildModal(containerID, content) {
  document.getElementById(containerID).innerHTML = content;
}

document.getElementById("btn-1").onclick - function() {
  buildModal("my-modal-box", "Content from first button")
}

document.getElementById("btn-2").onclick - function() {
  buildModal("my-modal-box", "Content from second button")
}

/* showModal() and hideModal() write yourself */

...
        urlGoogle: 'www.google.com' // <- все до безобразия просто. Переменная неправильно названа.

/*
Template name: Page name
*/

let obj = {
		    	'nameOneItem' : 'Name one',
		    	'nameTwoItem' : 'Name two'
	    	};
		
		$('button').click(function() {
			for(let key in arr){
				console.log(arr[key])
			}
		});