function popUp(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=750,height=480,left = 240,top = 112');");
}

function valid() {
	document.getElementById('namecheck').disabled = true;
	var errors=0;
	var errstr="";
	document.getElementById('email').style.backgroundColor ="white";
	document.getElementById('password1').style.backgroundColor ="white";
	document.getElementById('password2').style.backgroundColor ="white";
	var email = (document.getElementById('email').value !="");
	var pw1 = (document.getElementById('password1').value );	
	var pw2 = (document.getElementById('password2').value );
	if (!email)
	  {
   	   document.getElementById('email').style.backgroundColor ="red";
	   errstr = "An email address must be supplied. <br/>";
	   errors++;		  
	  }
	if (pw1 !=pw2) {
   	   document.getElementById('password1').style.backgroundColor ="red";
	   document.getElementById('password2').style.backgroundColor ="red";
	   errors++;	
	   errstr+=  "Both Passwords must be the same. <br/>";
	}
	if (pw1.length <8) {
		errors++;
		errstr+= "Passwords must be at least 8 characters long. <br/>";
   	    document.getElementById('password1').style.backgroundColor ="red";
	    document.getElementById('password2').style.backgroundColor ="red";		
	}
	
	if (errors==0)
	  {
		document.getElementById('namecheck').disabled = false;  			
		document.getElementById('error').innerHTML ="";  
	  }
	else
	  {
		document.getElementById('error').innerHTML ="<b>"+errstr+"</b>";  
	  }
}

function valids() {
	document.getElementById('namecheck').disabled = true;
	var errors=0;
	var errstr="";
	document.getElementById('surname').style.backgroundColor ="white";
	document.getElementById('firstname').style.backgroundColor ="white";
	document.getElementById('username').style.backgroundColor ="white";
	var surname = (document.getElementById('surname').value !="");
	var firstname = (document.getElementById('firstname').value );	
	var username = (document.getElementById('username').value );
	if (!surname)
	  {
   	   document.getElementById('surname').style.backgroundColor ="red";
	   errstr = "A surname must be supplied. <br/>";
	   errors++;		  
	  }
	 if (!firstname)
	  {
   	   document.getElementById('firstname').style.backgroundColor ="red";
	   errstr+= "A first name must be supplied. <br/>";
	   errors++;		  
	  }
	if (!username)
	  {
   	   document.getElementById('username').style.backgroundColor ="red";
	   errstr+= "A username must be supplied. <br/>";
	   errors++;		  
	  }
	
	if (errors==0)
	  {
		document.getElementById('namecheck').disabled = false;  			
		document.getElementById('error').innerHTML ="";  
	  }
	else
	  {
		document.getElementById('error').innerHTML ="<b>"+errstr+"</b>";  
	  }
}