// JavaScript Document

function updateNumberReceipants(){
	//number of name/email blocks to show 1-6
	num = document.getElementById("numRec").value;
	
	//primary
	document.getElementById('toNameBlock1').style.display = 'none';
	document.getElementById('toEmailBlock1').style.display = 'none';
	//document.getElementById('toName1').readOnly = true;
	
	//fields below here are not required but allow people to send multible invites
	//if they want more fields should make this a loop
	document.getElementById('toNameBlock2').style.display = 'none';
	document.getElementById('toEmailBlock2').style.display = 'none';
	document.getElementById('toName2').readOnly = true;
	document.getElementById('toEmail2').readOnly = true;
	
	document.getElementById('toNameBlock3').style.display = 'none';
	document.getElementById('toEmailBlock3').style.display = 'none';
	document.getElementById('toName3').readOnly = true;
	document.getElementById('toEmail3').readOnly = true;
	
	document.getElementById('toNameBlock4').style.display = 'none';
	document.getElementById('toEmailBlock4').style.display = 'none';
	document.getElementById('toName4').readOnly = true;
	document.getElementById('toEmail4').readOnly = true;
	
	document.getElementById('toNameBlock5').style.display = 'none';
	document.getElementById('toEmailBlock5').style.display = 'none';
	document.getElementById('toName5').readOnly = true;
	document.getElementById('toEmail5').readOnly = true;
	
	document.getElementById('toNameBlock6').style.display = 'none';
	document.getElementById('toEmailBlock6').style.display = 'none';
	document.getElementById('toName6').readOnly = true;
	document.getElementById('toEmail6').readOnly = true;
	
	//alert(navigator.vendor);
	//shows the fields needed
	isSafari = false;
	if(navigator.vendor == "Apple Computer, Inc." || navigator.vendor == "Apple"){
		isSafari = true;	
	}
	for(i=1; i<=num; i++){
		document.getElementById('toNameBlock' + i).style.display = 'inline';
		document.getElementById('toEmailBlock' + i).style.display = 'inline';
		if(!isSafari){
			document.getElementById('toNameBlock' + i).removeAttribute('style');
			document.getElementById('toEmailBlock' + i).removeAttribute('style');
		}
		document.getElementById('toName' + i).removeAttribute('readOnly');
		document.getElementById('toName' + i).readOnly = false;
		document.getElementById('toEmail' + i).removeAttribute('readOnly');
		document.getElementById('toEmail' + i).readOnly = false;

	}
	
	//blanks out any newly hidden fields
	if(i < 6){
		//alert(i);	
		for(i; i<=6; i++){
			document.getElementById('toName' + i).value="";
			document.getElementById('toEmail' + i).value="";
		}
	}
}