// JavaScript Document
function postform_submit()
{
if(!document.getElementById("email").value){
	alert('Please enter your email');
	document.getElementById("email").focus();
	return false;
	}else 
	   {    var emailStr=document.form2.email.value;   
			var reg1 = /(@.*@)|(\.\.)|(@\.)|(\.@)|(^\.)/; // not valid
			var reg2 = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$/; // valid
			if (!(!reg1.test(emailStr) && reg2.test(emailStr))) 
			{
			 alert("Please check your email address.");
			 form2.email.focus();
			  return false; 
			
			  }else{
						value_pos=window.open('signup.php?email='+document.form2.email.value,'','width=485,height=240');
						value_pos.moveTo(295,255);
						return false;
						
					}
	  }	 
	
    

}