function validateQuoteBox(){
	if(document.getElementById("product").selectedIndex==0){
		alert("Select a product.");
		return false;
	}
	if(document.getElementById("zip").value==""){
		alert("Enter your zip code.");
		return false;
	}
	return true;
}

function toggle_arrow_div(id){
	if(document.getElementById(id).src.indexOf("images/arrow_down.jpg")>-1){
		document.getElementById(id).src="images/arrow_right.jpg";
		document.getElementById(id+"_div").style.display="none";
	}else{
		document.getElementById(id).src="images/arrow_down.jpg";
		document.getElementById(id+"_div").style.display="block";
	}
}

function show_tab(tab,div){
	if(tab.id=="tab_two"){
		document.getElementById("tab_one").className="tab";
	} else {
		document.getElementById("tab_two").className="tab";
	}
	tab.className="tab active";
	document.getElementById("one").style.display="none";
	document.getElementById("two").style.display="none";
	document.getElementById(div).style.display="block";
}