var good;
function checkEmailAddress(field) {
var goodEmail = field.value.match(/\b(^(\S+@).+((\.com)|(\.net)|(\.edu)|(\.mil)|(\.gov)|(\.org)|(\..{2,2}))$)\b/gi);
if (goodEmail) {
good = true;
}
else {
alert('Please enter a valid e-mail address.');
field.focus();
field.select();
good = false;
   }
}
u = "Dunning Sand and Gravel (DSG) is a fourth generation family owned business.  It is a recognized leader in the distribution of sand, gravel, pavers, walls, and additional landscape products.  Their products include: Belgard pavers and Celtik walls, Europa Pavers, Atlas Block, Allan Block, Eldorado Stone, Dufferin stone, Keystone retaining walls, Architectural/ masonry units, and Quick-Brick.";
m = "I thought this might interest you...";
function mailThisUrl() {
good = false
checkEmailAddress(document.eMailer.address);
if (good) {
window.location = "mailto:"+document.eMailer.address.value+"?subject="+m+"&body="+u+" "+"http://www.dunningsand.com/";
   }
}