//***************THE FOLLOWING FUNCTIONS ARE USED THROUGHOUT************
function openWin(url,windowName,options){
	var WindowHandle=window.open(url,windowName,options);
	WindowHandle.focus();
}

var ns6=document.getElementById&&!document.all
var ie=document.all

function showSpan(spanID,thetext){
	if (ie) eval("document.all."+spanID).innerHTML=thetext
	else if (ns6) document.getElementById(spanID).innerHTML=thetext
}
function hideSpan(spanID){
	if (ie) eval("document.all."+spanID).innerHTML=' '
	else if (ns6) document.getElementById(spanID).innerHTML=' '
}

function getElementBy(elemTag){
	var elem = document.getElementById (elemTag);
	if (elem)
		return elem;
	var elems = document.getElementsByName (elemTag);
	if (elems.length > 0)
		return elems[0];
	return null;
}

function toggleOpenCloseElem(elemName){
	var elem = getElementBy (elemName);
	if (!elem)
		return;
	if (elem.style.display == "")
		elem.style.display = "none";
	else
		elem.style.display = "";
}
//***************THE ABOVE FUNCTION IS USED THROUGHOUT************



//***************THE FOLLOWING FUNCTION IS USED FOR FORM VALIDATION************
function confirmPrompt(msg,url){
	if(confirm(msg)) 
		document.location = url;
}

function validateLength(objTB,maxChar){
	if (objTB.value.length > maxChar){return false;}
	return true;
}

function validateEmail(objTB){
	var invalidChars = "*|,\":<> []{}`\';()&$#%";
	if (objTB.value.indexOf('@') < 0 || objTB.value.indexOf('.') < 0 || objTB.value.length < 5){return false;}
	for (var i = 0; i < objTB.value.length; i++){
	   if (invalidChars.indexOf(objTB.value.charAt(i)) != -1){return false;}
	}
	return true;
} 

function validateEmailNonReq(objTB){
	var invalidChars = "*|,\":<> []{}`\';()&$#%";
	if (objTB.value.length > 0){
		if (objTB.value.indexOf('@') < 0 || objTB.value.indexOf('.') < 0 || objTB.value.length < 5){return false;}
		for (var i = 0; i < objTB.value.length; i++){
		   if (invalidChars.indexOf(objTB.value.charAt(i)) != -1){return false;}
		}
		return true;
	}
	return true;
} 

function validateTextBox(objTB){
	if (objTB.value==''){return false;}
	return true;
}

function validateSelectList(objTB){
	if (objTB.selectedIndex==''){return false;}
	return true;
}

function validateNumberTextBoxNonReq(objTB){
	if (isNaN(objTB.value)){return false;}
	return true;
}

function validateNumberTextBox(objTB){
	if (objTB.value=='' || isNaN(objTB.value)){return false;}
	return true;
}

//***************THE ABOVE FUNCTION IS USED FOR FORM VALIDATION************



//***************THE FOLLOWING FUNCTIONS ARE USED BY THE PROPERTY COMPARE FEATURE************
var thecookie = document.cookie;

function getCookie(name) { // use: getCookie("name");
	var index = thecookie.indexOf(name + "=");
	if (index == -1) return null;
	index = thecookie.indexOf("=", index) + 1; // first character
	var endstr = thecookie.indexOf(";", index);
	if (endstr == -1) endstr = thecookie.length; // last character
	return unescape(thecookie.substring(index, endstr));
}

function setCookie(name, value) { // use: setCookie("name", value);
    document.cookie=name + "=" + escape(value) + ";";
}

function commitCompareList(){		
	setCookie("VAR_CompareList",GLOBAL_CompareList);
	setCookie("CompareCount",GLOBAL_CompareCount);
}		

function sendToCompare(){
	if (GLOBAL_CompareCount < 2){
		alert('Please check more than 1 property!');
	}else{
		if (GLOBAL_CompareCount > 4){
			alert('Please check no more than 4 properties!');
		}else{
			window.location = "/property/propertycompare.asp?VAR_CompareList=" + GLOBAL_CompareList + "&CompareCount=" + GLOBAL_CompareCount;
		}
	}
}
		
function compareClear(){
	GLOBAL_CompareList = "";
	GLOBAL_CompareCount = 0;		
	setCookie("VAR_CompareList","");
	setCookie("CompareCount","");
}

function addCompare(obj){
	//the maximum number of listings a user can check to compare
	var Max_Number_Properties = 4;
	
	if (obj.checked == true) 
	{
		if (GLOBAL_CompareCount == Max_Number_Properties) {			
			obj.checked = false;
			alert('You have already chosen ' + Max_Number_Properties + ' properties!');
		}
		else {
			GLOBAL_CompareList = GLOBAL_CompareList + obj.value;
			GLOBAL_CompareCount = parseInt(GLOBAL_CompareCount) + 1;
		}
	}	
	else 
	{
		GLOBAL_CompareCount = parseInt(GLOBAL_CompareCount) - 1
		GLOBAL_CompareList = GLOBAL_CompareList.replace(obj.value,"");
	}
}
//***************THE ABOVE FUNCTIONS ARE USED BY THE COMPARE TOOL************
	
	
//popup menus
var IE5up = document.getElementById && document.all;
var NS6up = document.getElementById && !document.all;
var NS4 = document.layers;
var IE4 = document.all && !window.print;
var previousLayer = "";
var tm;

function hide(layerid) {
	if (IE5up || NS6up) {
		document.getElementById(layerid).style.visibility = "hidden";
	} else if (NS4) {
		document.layers[layerid].visibility = "hidden";
	} else if (IE4) {
		document.all[layerid].style.visibility = "hidden";
	}
}

function NS4Hide(layerid) {
	if (NS4) {
		delayHide(layerid);
	}
}

function delayHide(layerid) {
var timer;
	if (IE5up || NS6up) {
		timer = "";
	} else if (NS4) {
		timer = "300";
	} else if (IE4) {
		timer = "";
	}
tm = setTimeout("hide('" + layerid + "')", timer);
}

function show(layerid) {
clearTimeout(tm);
	if (previousLayer != "" && previousLayer != layerid) {
		hide(previousLayer);
	}
previousLayer = layerid;

	if (IE5up || NS6up) {
		document.getElementById(layerid).style.visibility = "visible";
	} else if (NS4) {
		document.layers[layerid].visibility = "visible";
	} else if (IE4) {
		document.all[layerid].style.visibility = "visible";
	}
}