var appname=navigator.appName.toLowerCase();
var version=navigator.appVersion.toLowerCase();
var ua=navigator.userAgent.toLowerCase();
var n4=appname=="netscape"&&document.layers?1:0;
var n6=appname=="netscape"&&(parseInt(version) >= 5)?1:0;
var ie=appname=="microsoft internet explorer"?1:0;
var ie5=(version.indexOf('msie 5')>0);
var platform = "other";var browser="other";
if (ua.indexOf("win")>-1) platform = "win";
else if (ua.indexOf("mac")>-1) platform = "mac";
if(n4)browser="n4";
else if(ie)browser="ie";
else if(n6)browser="dom";


function warn(what){
	alert('Please enter a valid '+what+'.');
}
function check(obj,what,on){
	if(on){
		if(obj.value==what){
			obj.value=''
			if(!n4)obj.style.color="#000000";
		}
	}else{
		if(obj.value==''){
			obj.value=what
			if(!n4)obj.style.color="#000000";
		}
	}
}
function validate(obj){
	if (obj.bfname.value==''){
		warn("name"); 
		obj.bfname.focus();
		return false
	} else if (obj.baddress.value==''){
		warn("address");
		obj.baddress.focus();
		return false
	} else if (obj.bcity.value==''){
		warn("city");
		obj.bcity.focus();
		return false
	} else if (obj.bstate.value==''){
		warn("state");
		obj.bstate.focus();
		return false
	} else if (obj.bzip.value==''){
		warn("zip");
		obj.bzip.focus();
		return false
	} else if (obj.subject.value!='Requesting Upcoming Auction Brochure') {	
		//Phone is required for Questions and Selling a property.
		if (obj.bphone.value==''){
		warn("phone");
		obj.bphone.focus();
		return false
		}
	} else if (obj.subject.value=='-- select a subject --'){
		warn("subject");
		obj.subject.focus();
		return false		
	}
}