var mousePos;
function changeButton(button) {
    mousePos = document[button].src;
    document[button].src = "images/" + button + "_over.gif";
}
function resetButton(button) {
    document[button].src = mousePos;
}

// arrow
function changeArrow(button, over) {
    document[button + "_arrow"].src = "images/arrow" + over + ".gif";
    document[button].src = "images/" + button + over + ".gif";
}

// checks for blank fields on the contact form
function checkBlank(){
    F = document.inquiry;
    if (F.country.value==null || F.country.value=="" ||F.interest.value==null || F.interest.value=="" ||F.first_name.value==null 
	|| F.first_name.value=="" ||F.last_name.value==null || F.last_name.value=="" ||F.email.value==null || F.email.value=="" 
	|| F.question.value==null || F.question.value==""){
	    F.sbtIF.disabled=true;
	}
	else{
	    F.sbtIF.disabled=false;
	}
}