function customize_updatepreview (name) {
	var selectname = 'customize-'+name;
	var previewname = 'customizepreview-'+name;
	var selecting = document.getElementsByName(selectname);
	var selecting = selecting[0];
	var preview = document.getElementById(previewname);
	var option = selecting[selecting.selectedIndex].value;
	if (option == 'ignore') option = 'example';
	preview.src = 'images/customize/'+name+'_'+option+'.png';
}

function buy_optionmodify () {
	var pkgtype = document.getElementsByName('pkgtype');
	var pkgtype = pkgtype[0];
	var pkgtype = pkgtype[pkgtype.selectedIndex].value;
	var paper = document.getElementsByName('paper');
	var wallpaper = document.getElementsByName('wallpaper');
	var email = document.getElementsByName('email');
	var powerpoint = document.getElementsByName('powerpoint');
	//var webtemplate = document.getElementsByName('webtemplate');
	var vectorimage = document.getElementsByName('vectorimage');
	if (paper[0]!=undefined) paper = paper[0];
	if (wallpaper[0]!=undefined) wallpaper = wallpaper[0];
	if (email[0]!=undefined) email = email[0];
	if (powerpoint[0]!=undefined) powerpoint = powerpoint[0];
	//if (webtemplate[0].disabled!=undefined) webtemplate = webtemplate[0];
	if (vectorimage[0].disabled!=undefined) vectorimage = vectorimage[0];
	switch (pkgtype) {
		case 'none':
			//paper.disabled = false;
			if (wallpaper!=undefined) wallpaper.disabled = true;
			if (email!=undefined) email.disabled = true;
			if (powerpoint!=undefined) powerpoint.disabled = true;
			//if (webtemplate!=undefined) webtemplate.disabled = true;
			if (vectorimage!=undefined) vectorimage.disabled = true;
			if (wallpaper!=undefined) wallpaper.checked = false;
			if (email!=undefined) email.checked = false;
			if (powerpoint!=undefined) powerpoint.checked = false;
			//if (webtemplate!=undefined) webtemplate.checked = false;
			if (vectorimage!=undefined) vectorimage.checked = false;
		break;
		case 'stationery':
			//if (paper!=undefined) paper.disabled = false;
			if (wallpaper!=undefined) wallpaper.disabled = false;
			if (email!=undefined) email.disabled = false;
			if (powerpoint!=undefined) powerpoint.disabled = false;
			//if (email!=undefined) webtemplate.disabled = false;
			if (vectorimage!=undefined) vectorimage.disabled = false;
		break;
		case 'identity':
		default:
			//if (paper!=undefined) paper.disabled = false;
			if (wallpaper!=undefined) wallpaper.disabled = true;
			if (email!=undefined) email.disabled = true;
			if (powerpoint!=undefined) powerpoint.disabled = true;
			//if (webtemplate!=undefined) webtemplate.disabled = true;
			if (vectorimage!=undefined) vectorimage.disabled = true;
			if (wallpaper!=undefined) wallpaper.checked = false;
			if (email!=undefined) email.checked = false;
			if (powerpoint!=undefined) powerpoint.checked = false;
			//if (webtemplate!=undefined) webtemplate.checked = false;
			if (vectorimage!=undefined) vectorimage.checked = false;
		break;
	}
}

var search_eraseonce_done = false;
function search_eraseonce(element) {
	if (!search_eraseonce_done)
		element.value = '';
	search_eraseonce_done = true;
}