// window pop-up

function popup(url) {
	 var width  = 800;
	 var height = 600;
	 var left   = (screen.width  - width)/2;
	 var top    = (screen.height - height)/2;
	 var params = 'width='+width+', height='+height;
	 params += ', top='+top+', left='+left;
	 params += ', directories=no';
	 params += ', location=no';
	 params += ', menubar=no';
	 params += ', resizable=no';
	 params += ', scrollbars=yes';
	 params += ', status=no';
	 params += ', toolbar=no';
	 newwin=window.open(url,'windowname5', params);
	 if (window.focus) {newwin.focus()}
	 return false;
}

// Form Validation

function validateForm() { 
	var name = document.forms["contactForm"]["name"].value;
	var email=document.forms["contactForm"]["email"].value;
	var atpos=email.indexOf("@");
	var dotpos=email.lastIndexOf(".");	
	
	if (name == null || name == "") { 
		alert("Name is required");
		return false;
	}
	
	if (atpos<1 || dotpos<atpos+2 || dotpos+2>=email.length) {
	  alert("Pleas enter a valid e-mail address");
	  return false;
	}
}