function isValidSearch(srchFld) {
	if (!isText(srchFld.value)) {
		alert("Please enter your search text.");
		return false;
	} else {
		return true;
	}
}

// returns false if str is empty
function isText(str) {
  return (str != "");
}
	//left margin nav buttons

	/*missionon = new Image();
	missionon.src = "Images/mission.jpg";
	missionoff = new Image();
	missionoff.src = "Images/mission-roll.jpg";

	staffon = new Image();
	staffon.src = "Images/staff.jpg";
	staffoff = new Image();
	staffoff.src = "Images/staff-roll.jpg";

	serviceson = new Image();
	serviceson.src = "Images/services.jpg";
	servicesoff = new Image();
	servicesoff.src = "Images/services-roll.jpg";
	
	mapon = new Image();
	mapon.src = "images/map.jpg";
	mapoff = new Image();
	mapoff.src = "images/map-roll.jpg";*/


	// horizontal tabs

	// home
	/*homeon = new Image();
	homeon.src = "images/HomeTabsB_02.jpg";
	homeoff = new Image();
	homeoff.src = "images/HomeTabsW_02.jpg";

	petownon = new Image();
	petownon.src = "images/HomeTabsB_04.jpg";
	petownoff = new Image();
	petownoff.src = "images/HomeTabsW_04.jpg";

	clienton = new Image();
	clienton.src = "images/HomeTabsB_06.jpg";
	clientoff = new Image();
	clientoff.src = "images/HomeTabsW_06.jpg";

	veton = new Image();
	veton.src = "images/HomeTabsB_08.jpg";
	vetoff = new Image();
	vetoff.src = "images/HomeTabsW_08.jpg";*/

	// pet owners
	/*forowneron = new Image();
	forowneron.src = "images/OwnerTabsB_08.jpg";
	forowneroff = new Image();
	forowneroff.src = "images/OwnerTabsW_08.jpg";

	ownerresourceson = new Image();
	ownerresourceson.src = "images/OwnerTabsB_08.jpg";
	ownerresourcesoff = new Image();
	ownerresourcesoff.src = "images/OwnerTabsW_08.jpg";

	ownerfaqon = new Image();
	ownerfaqon.src = "images/OwnerTabsB_08.jpg";
	ownerfaqoff = new Image();
	ownerfaqoff.src = "images/OwnerTabsW_08.jpg";*/

function mover(nm) {
	//alert("mover(" + nm + ")");
	document[nm].src = eval(nm + "off.src");
}
function mout(nm) {
	//alert("mout(" + nm + ")");
	document[nm].src = eval(nm + "on.src");
}

function IsPhone(numbr){

	if (numbr == "") {
		return true;
	}
	lp = numbr.substr(0,1)
	if (lp != "("){
		return false;
	}
	ac = numbr.substr(1,3)
	if (!IsNum(ac)){
		return false;
	}
	rp = numbr.substr(4,1)
	if (rp != ")"){
		return false;
	}
	bl1 = numbr.substr(5,1)
	if (bl1 != " "){
		return false;
	}
	ex = numbr.substr(6,3)
	if (!IsNum(ex)){
		return false;
	}
	ds = numbr.substr(9,1)
	if (ds != "-"){
		return false;
	}
	dg = numbr.substr(10,4)
	if (!IsNum(dg)){
		return false;
	}
	return true;
}


function IsDate(val){
	if (val == ""){
		return true
	}
	
	mloc = val.indexOf('/')
	if (mloc == 0){
		return false;
	}
	mm = val.substr(0,mloc)
	
	if (mm < 1 || mm > 12){
		return false;
	}
	
	valn = val.substr(mloc + 1,val.length)
	dloc = valn.indexOf('/')
	if (dloc == 0){
		return false;
	}
	dd = valn.substr(0,dloc)
	if (dd < 1 || dd > 31){
		return false;
	}
	yy = valn.substr(dloc + 1,valn.length)
	
	if (IsNum(mm) && IsNum(dd) && IsNum(yy)){
		return true;
	}else{
		return false;
	}
}


function IsNum(val){
	if (val == ""){
		return true;
	}
	testval = val
	
	while (testval.length > 0){
		tchr = testval.substr(0,1)
		testval = testval.substr(1,testval.length)
		if ((tchr < '0' || tchr > '9') && (tchr != " ")){
			
			return false;
		}
	}
	return true;
}