function analyzeCheckbox(){
	  var itm = null;
	  id = "invoice_open";
	  if (document.getElementById) {
		itm = document.getElementById(id);
	  } else if (document.all){
		itm = document.all[id];
	  } else if (document.layers){
		itm = document.layers[id];
	  }
		if (document.address2.invoice_address.checked) itm.style.display = "";
		else itm.style.display = "none";  
}
	
function analyzeCompany(){
	  var itm = null;
	  id = "comp_open";id3 = "comp_open2";
	  id2 = "delivery_open";
	  if (document.getElementById) {
		itm = document.getElementById(id);
		itm2 = document.getElementById(id2);
		itm3 = document.getElementById(id3);
	  } else if (document.all){
		itm = document.all[id];
		itm2 = document.all[id2];
		itm3 = document.all[id3];
	  } else if (document.layers){
		itm = document.layers[id];
		itm2 = document.layers[id2];
		itm3 = document.layers[id3];
	  }
		if (document.address2.cust_type[1].checked) itm.style.display = "";
		else itm.style.display = "none";
		if (document.address2.cust_type[1].checked) itm3.style.display = "";
		else itm3.style.display = "none";  
		if (document.address2.cust_type[1].checked) itm2.style.display = "";
		else if (document.address2.delivery.value != '1') itm2.style.display = "none"; 
}