function isInteger (s) {
	var i;
	if (isEmpty(s))
	if (isInteger.arguments.length == 1) return 0;
	else return (isInteger.arguments[1] == true);
	for (i = 0; i < s.length; i++) {
		var c = s.charAt(i);
		if (!isDigit(c)) return false;
	}
	return true;
}

function isEmpty(s) {
return ((s == null) || (s.length == 0))
}

function isDigit (c) {
return ((c >= "0") && (c <= "9"))
}

function validateInt( o ) {
	switch (isInteger(o.value)) {
		case true:
			break;
		case false:
			alert(o.value + " is not a number.")
				o.value = '';
	}
}




//here you place the ids of every element you want.
// var ids=new Array('k5','y24','p6');

function switchid(id){	
	hideallids();
	showdiv(id);
}

function hideallids(){
	//loop through the array and hide each element by id
	for (var i=0;i<ids.length;i++){ hidediv(ids[i]); }		  
}

function hidediv(id) {
	//safe function to hide an element with a specified id
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'none';
	} else {
		if (document.layers) { // Netscape 4
			document.id.display = 'none';
		} else { // IE 4
			document.all.id.style.display = 'none';
		}
	}
}

function showdiv(id) {
//safe function to show an element with a specified id
			  
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'block';
	} else {
		if (document.layers) { // Netscape 4
			document.id.display = 'block';
		} else { // IE 4
			document.all.id.style.display = 'block';
		}
	}
}

function MM_swapImgRestore() {
	  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { 
	  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
			  var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
					  if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) {
	  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
			  d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
		  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
			  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
				  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() {
	  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
			  if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}






var shipping_name_saved = '';
var shipping_address_saved = '';
var shipping_address2_saved = '';
var shipping_city_saved = '';
var shipping_state_saved = '';
var shipping_state_alt_saved = '';
var shipping_postal_code_saved = '';
var shipping_country_saved = '';
var radio_saved = '';

function set_shipping_address() {
	if( document.getElementById("checkout").shipping_is_billing.checked ) {
		shipping_name_saved = document.getElementById("checkout").shipping_name.value;
		document.getElementById("checkout").shipping_name.value = document.getElementById("checkout").billing_name.value;

		shipping_address_saved = document.getElementById("checkout").shipping_address.value;
		document.getElementById("checkout").shipping_address.value = document.getElementById("checkout").billing_address.value;

		shipping_address2_saved = document.getElementById("checkout").shipping_address2.value;
		document.getElementById("checkout").shipping_address2.value = document.getElementById("checkout").billing_address2.value;

		shipping_city_saved = document.getElementById("checkout").shipping_city.value;
		document.getElementById("checkout").shipping_city.value = document.getElementById("checkout").billing_city.value;

		shipping_state_saved = document.getElementById("checkout").shipping_state.selectedIndex;
		document.getElementById("checkout").shipping_state.selectedIndex= document.getElementById("checkout").billing_state.selectedIndex;

		shipping_state_alt_saved = document.getElementById("checkout").shipping_state_alt.value;
		document.getElementById("checkout").shipping_state_alt.value = document.getElementById("checkout").billing_state_alt.value;

		shipping_postal_code_saved = document.getElementById("checkout").shipping_postal_code.value;
		document.getElementById("checkout").shipping_postal_code.value = document.getElementById("checkout").billing_postal_code.value;

		shipping_country_saved = document.getElementById("checkout").shipping_country.selectedIndex;
		document.getElementById("checkout").shipping_country.selectedIndex= document.getElementById("checkout").billing_country.selectedIndex;

	} else {
		document.getElementById("checkout").shipping_name.value = shipping_name_saved;
		document.getElementById("checkout").shipping_address.value = shipping_address_saved;
		document.getElementById("checkout").shipping_address2.value = shipping_address2_saved;
		document.getElementById("checkout").shipping_city.value = shipping_city_saved;
		document.getElementById("checkout").shipping_state.selectedIndex= shipping_state_saved;
		document.getElementById("checkout").shipping_country.selectedIndex= shipping_country_saved; 
		document.getElementById("checkout").shipping_postal_code.value = shipping_postal_code_saved;
		document.getElementById("checkout").shipping_state_alt.value = shipping_state_alt_saved;
	}
}

function set_radio() {
	if( document.getElementById("checkout").no_radio.checked ) {
		radio_saved = document.getElementById("checkout").radio.value;
		document.getElementById("checkout").radio.value = '';

	} else {
		document.getElementById("checkout").radio.value = radio_saved;
	}
}