return value จาก javascript ไปยัง php หรือ html ยังไงหรอครับ

<?php $SumCopy = 0; ?>

<select name="EPaper_Name" id="EPaper_Name" onChange="javascript:changeText1();">
.
.
.
</select>

function changeText1(){
	
	var userInput = document.getElementById('EPaper_Name').value;
	alert('1');
	document.getElementById('EPaper_Price').innerHTML = userInput;
	
				var Page_One =  $("#Page_One").val();
			 	var Page_Two =  $("#Page_Two").val();
				Page_Two = parseInt(Page_Two);
				Page_One = parseInt(Page_One);
				var NumEpaper =  Page_One + (Page_Two *2);	
	document.getElementById('EPaper_Num').innerHTML = NumEpaper;