// JavaScript Document

function chpage(eid) {

	var myarray = document.getElementsByClassName('products');
	var clicked = 'pt_'+eid;

    for (var i=0;i<myarray.length;i++) {

	var to = document.getElementById(myarray[i].id);

	var bid = myarray[i].id.replace("pt_", "pg_");

	var bt = document.getElementById(bid);

	if (to.id==clicked) {

	  $(to.id).appear({ duration: 1.0 });

	  bt.className = 'dnbutton b_on';
	  to.className = 'products t_on';

	} else {

	  bt.className = 'dnbutton b_off';
	  to.className = 'products t_off';
	}

    }

}