function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		footer_03_over = newImage("images/footer_03-over.gif");
		preloadFlag = true;
	}
}

function wget(url) {
	var ms = ((navigator.appName.toLowerCase()).indexOf('microsoft') >= 0);
	var version, request, temp;
	if(ms) {
		temp = navigator.appVersion;
		version = parseFloat(temp.substr(temp.indexOf("MSIE")+5));
		}
	if(ms && version < 7)	request = new ActiveXObject("MsXml2.XmlHttp");
	else					request = new XMLHttpRequest();

	//alert(version+"\n"+navigator.appVersion);

	request.open('GET',url,false);
	request.send(null);

	return request.responseText;
	}

function content(file) {
	var token, temp, file_header;
	if((temp = file.indexOf('/')) > 0) token = file.substr(temp+1);
	else token = file;
	token = token.substr(0,token.indexOf('.'));
	file_header = './images/header_'+token+'.jpg';

	document.getElementById('content_header').src = file_header;
	document.getElementById('content').innerHTML = wget(file);
	}

function product(i) {
	document.getElementById('product').innerHTML = wget('product.php?i_led_years='+i);
	}
	

function loadup(table,value) {
	var i, results, element, chunks1, chunks2;
	chunks1 = new Array();
	chunks2 = new Array();

	results = wget('loadup.php?table='+table+'&value='+value);
	chunks1 = results.split("\n");

	// Zero out led_years and product regardless... yeah, I know it's pretty cheesy.
	element = document.getElementById('led_years');
	element.options.length		= 1;
	element.selectedIndex		= 0;
	element.options[0].value	= 0;
	element.options[0].text		= "Select a Model";
	product(0);
	// .

	element = document.getElementById(table);
	element.options.length		= chunks1.length + 1;
	element.selectedIndex		= 0;
	element.options[0].value	= 0;
	element.options[0].text		= "[Select One]";

	for(i=1; i<element.options.length; i++) {
		chunks2 = chunks1[i-1].split('|',2);
		element.options[i].value	= chunks2[0];
		element.options[i].text		= chunks2[1];
		}
	}

function cart_validate(form) {
	var errors = "", e;

	cart_checktax(form.billing_address_state,true);

	e = form.email;
	if(!e.value) {
		errors = " - Email address is blank\n" + errors;
		e.focus();
		}
	e = form.billing_address_zip;
	if(!e.value) {
		errors = " - Billing address zipcode is blank\n" + errors;
		e.focus();
		}
	e = form.billing_address_city;
	if(!e.value) {
		errors = " - Billing address city is blank\n" + errors;
		e.focus();
		}
	e = form.billing_address_street_1;
	if(!e.value) {
		errors = " - Billing address street is blank\n" + errors;
		e.focus();
		}
	e = form.cc_name;
	if(!e.value) {
		errors = " - Credit card name is blank\n" + errors;
		e.focus();
		}
	e = form.cc_expiration;
	if(!e.value) {
		errors = " - Credit card expiration is blank\n" + errors;
		e.focus();
		}
	e = form.cc_number;
	if(!e.value) {
		errors = " - Credit card number is blank\n" + errors;
		e.focus();
		}
	e = form.shipping_address_zip;
	if(!e.value) {
		errors = " - Shipping address zipcode is blank\n" + errors;
		e.focus();
		}
	e = form.shipping_address_city;
	if(!e.value) {
		errors = " - Shipping address city is blank\n" + errors;
		e.focus();
		}
	e = form.shipping_address_street_1;
	if(!e.value) {
		errors = " - Shipping address street is blank\n" + errors;
		e.focus();
		}
	e = form.name_last;
	if(!e.value) {
		errors = " - Last name is blank\n" + errors;
		e.focus();
		}
	e = form.name_first;
	if(!e.value) {
		errors = " - First name is blank\n" + errors;
		e.focus();
		}

	if(errors.length) {
		alert("The following errors occurred:\n"+errors);
		return false;
		}
	else return true;
	}

function cart_addresses(form,value) {
	if(!value) return;

	var keys = new Array('street_1','street_2','city','zip');
	for(i=0; i<keys.length; i++) {
		form.elements['billing_address_'+keys[i]].value = form.elements['shipping_address_'+keys[i]].value;
		}
	form.elements['billing_address_state'].selectedIndex = form.elements['shipping_address_state'].selectedIndex;
	cart_checktax(form.elements['billing_address_state']);
	}

function cart_checktax(e,silent) {
	var form = e.form;
	if(e.options[e.selectedIndex].value == form.tax_state.value) {
		if(!silent) alert("Residents of "+form.tax_state.value+" are assessed a "+(form.tax_rate.value*100)+"% sales tax.\nThis will bring your total to $"+form.total_taxed.value);
		form.tax.value = form.tax_rate.value;
		}
	else form.tax.value = 0;
	}

function winOpenPrivacy(url)
{

        contentWin =
window.open(url,"privacy","resizable=no,toolbar=no,location=no,width=420,height=575,directories=no,status=no,scroll=no,scrollbars=yes,menubar=no,left=10,top=10");
}