function showPropPhoto(url) {
	var main = $('main_photo');
	main.replace('<img id="main_photo" src="' + url + '" class="prop_photo />');
}
function allPhotos(url) {
	window.open(url,false,'width=420,scrollbars=yes');
}
function emailPage(url) {
	window.open(url,false,'width=475,height=475');
}
function checkEmailForm() {
	var req = new Array('recip_name','recip_email','sender_name','sender_email');
	var valid = true;
	var form = $('email_form');
	for(var i = 0,len = req.size(); i < len; i++) {
		var f = req[i];
		if(Field.present(f)) {
			var color = '#7d7d7d';
		} else {
			var color = '#ff2222';
			valid = false;
		}
		$(f).setStyle({borderColor: color});
		//find the label
		var label = form.getElementsBySelector('label[for=' + f + ']')[0];
		label.setStyle({color: color});
	}
	if(!valid)
		alert("Some of the required fields are missing.\nPlease fill out the highlighted fields and click \"Send\".");
	return valid;
}
function getCalc(price) {
	var url = 'calculator.php?def_price=' + price;
	window.open(url,false,'width=505,scrollbars=yes');
}