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) {
		facilities_over = newImage("images/facilities-over.jpg");
		structure_over = newImage("images/structure-over.jpg");
		location_over = newImage("images/location-over.jpg");
		about_us_over = newImage("images/about_us-over.jpg");
		quote_over = newImage("images/quote-over.jpg");
		contact_us_over = newImage("images/contact_us-over.jpg");
		preloadFlag = true;
	}
}
function chkQuote(){
	var key = document.QuoteFrm;
	if(key.Company.value == ''){
		alert("Company cannot be blank.");
		key.Company.focus();
	}else if(key.Contact.value == ''){
		alert("Contact cannot be blank.");
		key.Contact.focus();
	}else if(key.Phone.value == ''){
		alert("Phone cannot be blank.");
		key.Phone.focus();
        }else if(key.Email.value == ''){
                alert('E-Mail cannot be blank.');
                key.Email.focus();
	}else if(!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(key.Email.value))){
		alert("Invalid E-mail Address! Please re-enter.")
                key.Email.focus();
	}else
		key.submit();
}