ขอความรู้หน่อยครับ เกี่ยวกับ การ รับส่งค่า java - javascript - php

<script type="text/javascript">		
	function pop(url,reCall,width,height){
	   if(!url) return;
	   if(typeof width=="undefined")
		   width = '70%';
	   if(typeof height=="undefined")
		   height = '100%';
	   $jq143.fancybox({
		   'showCloseButton' : true,
		  'autoDimensions'	 : true,
		   'width'         	 : width,
		   'height'        	 : height,
		   'autoScale'		 : false,
		   'centerOnScroll'  : true,
		   'transitionIn'	 : 'elastic',
		   'transitionOut'	 : 'fade',
		   'speedIn'		: 600,
		   'speedOut'		: 200,
		   'titlePosition'   : 'outside',
		   'type'		     : 'iframe',
		   'href'		     : url,				
		   'onClosed': function (){
				//alert(1);
				//window.location='Course_Manage.php'; 
				window.location.reload(true);
				//document.iframe['ShowData'].location.reload(true); 	   
		  }
	   });
	}		
	function EDIT(id){
		if(!id)return;
		var url = "Course_edit.php";
		pop(url);
	}
	
	function ADD(id){
		if(!id)return;
		var url = "Course_Register.php";
		pop(url);
	}
	
	function DEL(id){
		if(!id)return;
		var url = "Course_del.php";
		pop(url);	
	}
</script>

           function DEL(id){
		if(!id)return;
		var url = "Course_del.php";
                var width = '100';
                var height  '50';
		pop(url,width,height);