function openClose(item) {
	var e=document.getElementById(item);
	if(e.style.display=='none'){
		e.style.display='block';
	}else{
		e.style.display='none';
	}
}


function jemail(user, domain, suffix){
   document.write('<a href="' + 'mailto:' + user + '@' + domain + '.' + suffix + '">' + user + '@' + domain + '.' + suffix + '</a>');
}


function showPopUp() {
	var popup=document.getElementById('popup');
    popup.style.top = (screen.availHeight / 2)-300+ 'px';
    popup.style.left = (screen.availWidth/2)-175+ 'px';
    popup.style.display = 'block';
}

function hidePopUp() {
	var popup=document.getElementById('popup');
	popup.style.display = 'none';
}