function AddEmailBlock() {

	var counter = document.getElementById('email_counter');
	var id = parseInt(counter.value);
	var blocks_div = document.getElementById('emails_block');
	var src = document.getElementById('email_div_phid_');
	counter.value = ++id;
	var new_block = document.createElement('DIV');
	new_block.id = 'email_div'+id;
	new_block.innerHTML = src.innerHTML.replace(/_phid_/g, id);
	blocks_div.appendChild(new_block);
}

function RemoveEmailBlock(iID) {

	var blocks_div = document.getElementById('emails_block'); 
	var present_div = document.getElementById('email_div'+iID);
	blocks_div.removeChild(present_div);

  	var counter = document.getElementById('email_counter');
	var id = parseInt(counter.value);
	counter.value = --id;
 
}

function RemoveLastEmailBlock() {
	
	var blocks_div = document.getElementById('emails_block');
	if (blocks_div.lastChild.id == 'email_div1') return;
	blocks_div.removeChild(blocks_div.lastChild);

  	var counter = document.getElementById('email_counter');
	var id = parseInt(counter.value);
	if (id > 1)
	counter.value = --id;
}