var good;
function checkEmailAddress(field) {
// the following expression must be all on one line...
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;
   }
}


buttonanimation = document.images

if(buttonanimation){

	buttonOn = new Image()   
	buttonOn.src = "./images/onarrow.gif"

	buttonOff = new Image()   
	buttonOff.src = "./images/offarrow.gif"

	shortbuttonOn = new Image()   
	shortbuttonOn.src = "./images/shortonarrow.gif" 

	shortbuttonOff = new Image()   
	shortbuttonOff.src = "./images/shortoffarrow.gif"

}


function outBut(whichbut){

	if(buttonanimation){

		if(whichbut == "rentalapp"){

			document.images[whichbut].src = shortbuttonOff.src 

		}else{

			document.images[whichbut].src = buttonOff.src 

		}

	}

}


function overBut(whichbut){

	if(buttonanimation){

		if(whichbut == "rentalapp"){

			document.images[whichbut].src = shortbuttonOn.src 

		}else{

			document.images[whichbut].src = buttonOn.src 

		}

	}

}


// code for checking form input
 function checkform(){
var empty = "";
var formtest = document.contact.required_name.value
	if( formtest.length < 3){
 			empty = "Name";
			}
formtest = document.contact.required_address1.value
if( formtest.length < 3){
 			empty = empty + " -Address 1";
			}
formtest = document.contact.required_city.value
if( formtest.length < 3){
 			empty = empty + " -City";
			}
formtest = document.contact.required_state.value
if( formtest.length < 2){
 			empty = empty + " -State";
			}
formtest = document.contact.required_zip.value
if( formtest.length < 3){
 			empty = empty + " -Zip";
			}
formtest = document.contact.required_email.value
if( formtest.length < 3){
 			empty = empty + " -Email";
			}

if (empty != ""){
emptyfield(empty);
return false;
 }else{
checkEmailAddress(document.contact.required_email)
return good;
}
}