function attachFormHandlers()
{
//alert("setup");
  // Ensure we're working with a 'relatively' standards 
  // compliant browser
  if (document.getElementsByTagName)
  {
    var objForm = document.getElementsByTagName('form');

    for (var iCounter=0; iCounter<objForm.length; iCounter++)
      objForm[iCounter].onsubmit = function(){return checkForm(this);}
  }
}


function getStyle(el,styleProp)
{
	if(navigator.userAgent.indexOf("Safari") != -1){
		// huge hack for safari, as there's no way to retrieve the style of an object reference (boooo!)
		var y = "inline";		
	}else if (el.currentStyle){
		var y = el.currentStyle[styleProp];
	}else if (window.getComputedStyle){
		var y = document.defaultView.getComputedStyle(el,null).getPropertyValue(styleProp);
	}
	return y;
}


// begin master validation

function checkForm(objForm) {
	var arClass, bValid, errorMsg;
	var objField = objForm.getElementsByTagName('*');
	var labels = objForm.getElementsByTagName('label');
  
	for (var iFieldCounter=0; iFieldCounter<objField.length; iFieldCounter++) {
		// Allow for multiple values being assigned to the class attribute
		var getAncestorStyle = function(node) {
		//walk up a node's ancestry to see if it's display prop
		//is 'inline' or 'block'
		//go back now if we're looking at the body node.
			if (node == document.body) return getStyle(node,'display');
			else {
				//check the node passed in first.
				var walker = node;
				do {
					//grab the style
					var myStyle = getStyle(walker,'display');
					//if this node's display: none, return it's style object
					if (myStyle == 'none') return myStyle;
					//otherwise get the node's parent
					walker = walker.parentNode;
					//and repeat until we hit the body element.
				} while (walker != document.body);
		//if we didn't find an invisible ancestor,
		//simply return the passed in node's style
		return getStyle(node,'display');
		}
	}

	var dProp = getAncestorStyle(objField[iFieldCounter]);
	var isShown = (dProp == "block" || dProp == "inline");
	
	arClass = objField[iFieldCounter].className.split(' ');
	
	if(isShown == true){		
		for (var iClassCounter=0; iClassCounter<arClass.length; iClassCounter++) {
			switch (arClass[iClassCounter]) {
		        case "string":
					bValid = isString(objField[iFieldCounter].value.replace(/^\s*|\s*$/g, ''));
					// set error msg string
					for(i=0;i<labels.length;i++){			
						var forAttr = labels[i].getAttribute("for") ? labels[i].getAttribute("for") : labels[i].attributes["for"].value;
						if(forAttr == objField[iFieldCounter].id){
							errorMsg = "Please review the entry you provided for " + labels[i].firstChild.nodeValue + ".  This value is required.";
						}
					}
				break;
			   
		        case "empty":
					bValid = isNotEmpty(objField[iFieldCounter].value.replace(/^\s*|\s*$/g, ''));
					// set error msg string
					for(i=0;i<labels.length;i++){			
						var forAttr = labels[i].getAttribute("for") ? labels[i].getAttribute("for") : labels[i].attributes["for"].value;
						if(forAttr == objField[iFieldCounter].id){
							errorMsg = "Please review the entry that you provided for " + labels[i].firstChild.nodeValue + ".  This value is required.";
						}
					}
		        break;
	
		        case "number" :
					bValid = isNumber(objField[iFieldCounter].value);
					// set error msg string
					for(i=0;i<labels.length;i++){			
						var forAttr = labels[i].getAttribute("for") ? labels[i].getAttribute("for") : labels[i].attributes["for"].value;
						if(forAttr == objField[iFieldCounter].id){
							errorMsg = labels[i].firstChild.nodeValue + " requires that you enter a number. Please check your entry.";
						}			
					}
				break;
			   
		        case "email" :
					bValid = isEmail(objField[iFieldCounter].value);
					errorMsg = "Your email address doesn't appear to be valid. Please check your entry. This value is required.";
	            break;
				 
				case "select" :
					bValid = validateSelect(document.getElementById(objField[iFieldCounter].id)[document.getElementById(objField[iFieldCounter].id).selectedIndex].text);
					for(i=0;i<labels.length;i++){			
						var forAttr = labels[i].getAttribute("for") ? labels[i].getAttribute("for") : labels[i].attributes["for"].value;
						if(forAttr == objField[iFieldCounter].id){
							errorMsg = "Please ensure that you have selected an item from the " + labels[i].firstChild.nodeValue + " dropdown.";
						}
					}
				break;
			   
				case "password" :
					bValid = comparePW();
					errorMsg = "Please ensure that you have entered the same password in both fields.";
				break;
	
				case "phone" :
					bValid = isPhone(objField[iFieldCounter].value);
					// set error msg string
					for(i=0;i<labels.length;i++){			
						var forAttr = labels[i].getAttribute("for") ? labels[i].getAttribute("for") : labels[i].attributes["for"].value;
						if(forAttr == objField[iFieldCounter].id){
							errorMsg = "The " + labels[i].firstChild.nodeValue + " that you entered doesn't appear to be valid.  Please check your entry.";
						}			
					}
				 break;
	
				case "zip" :
					bValid = isZip(objField[iFieldCounter].value);
					// set error msg string
					for(i=0;i<labels.length;i++){			
						var forAttr = labels[i].getAttribute("for") ? labels[i].getAttribute("for") : labels[i].attributes["for"].value;
						if(forAttr == objField[iFieldCounter].id){
							errorMsg = "The " + labels[i].firstChild.nodeValue + " that you entered doesn't appear to be valid. Please check your entry.";
						}			
					}
				 break;
	
				case 'iatan' :
					bValid = noDashes(objField[iFieldCounter].value);
					errorMsg = "The IATAN number that you entered doesn't appear to be valid. Please check your entry, and ensure the number is free of dashes.";
				break;

				case "radio" :
					bValid = radioChosen(objField[iFieldCounter].name);
					for(i=0;i<labels.length;i++){
						var forAttr = labels[i].getAttribute("for") ? labels[i].getAttribute("for") : labels[i].attributes["for"].value;
						if(forAttr == objField[iFieldCounter].name){
							errorMsg = "Please ensure that you have made a choice for the " + labels[i].firstChild.nodeValue + " question.";
						}
					}
				break;
				
				case "calendar-dates" :
					bValid = valDates(objField[iFieldCounter].name);
					for(i=0;i<labels.length;i++){			
						var forAttr = labels[i].getAttribute("for") ? labels[i].getAttribute("for") : labels[i].attributes["for"].value;
						if(forAttr == objField[iFieldCounter].id){
							errorMsg = "The Preferred range of dates that you entered doesn't appear to be valid. Please check your entry.";
						}			
					}
				break;

				case "calendar-today" :
					bValid = calToday(objField[iFieldCounter].id);
					for(i=0;i<labels.length;i++){			
						var forAttr = labels[i].getAttribute("for") ? labels[i].getAttribute("for") : labels[i].attributes["for"].value;
						if(forAttr == objField[iFieldCounter].id){
							errorMsg = "The " + labels[i].firstChild.nodeValue + " that you entered appears to be in the past. Please check your entry.";
						}			
					}
				break;

				case "textarea500" :
					bValid = textarea500(objField[iFieldCounter].id);
					for(i=0;i<labels.length;i++){			
						var forAttr = labels[i].getAttribute("for") ? labels[i].getAttribute("for") : labels[i].attributes["for"].value;
						if(forAttr == objField[iFieldCounter].id){
							errorMsg = "You've entered more than 500 characters for the " + labels[i].firstChild.nodeValue + " area. Please check your entry.";
						}			
					}
				break;

				case "checkagree" :
					bValid = document.getElementById('agree').checked;
					if(!bValid){
						errorMsg = "You must agree to the terms.";
					}
				break;
				
				case "requestType":
					bValid = document.getElementById("requestType").value == "true" ? true : false;
					if(!bValid){
						errorMsg = "Please make a choice for the type of asset you are requesting, either Photos, Videos or both.";
					}
				break;
				
				default:
				bValid = true;
			}
	
			if (bValid == false) {
		        // If this field is invalid, leave the testing early and alert the visitor to this error	
		        alert(errorMsg);
		        //objField[iFieldCounter].select();
		        objField[iFieldCounter].focus();
		        return false;
			}
		}
	}
  }
  return true;
}

// end master validation


function isString(strValue)
{
  return (typeof strValue == 'string' && strValue != '' && isNaN(strValue));
}

function isNumber(strValue)
{
  return (!isNaN(strValue) && strValue != '');
}

function isEmail(strValue)
{
  var objRE = /^[\w-\.\']{1,}\@([\da-zA-Z-]{1,}\.){1,}[\da-zA-Z-]{2,}$/;

  return (strValue != '' && objRE.test(strValue));
}

function comparePW(){
	var pw1 = document.getElementById("password");
	var pw2 = document.getElementById("confPassword");
	if (pw1.value != pw2.value){return false}else{return true}
}

function validateSelect(strValue){
	if(strValue == "Please Select" || strValue == "Select State" || strValue == "Month" || strValue == "Day" || strValue == "Year" || strValue == "" || strValue == " ") {return false}else{return true}
}

function isPhone(strValue){
	var stripped = strValue.replace(/[\(\)\.\-\ ]/g, '');
	
	// does not work
	/*if (isNaN(parseInt(stripped))) {
		alert('is nan');
	   return false;
	}*/
	
	// works
	var hasChars = stripped.match(/\D/g);
	if(hasChars != null){
		return false;
	}

	if (!(stripped.length == 10)) {
	   return false;
	}
}

function trimString (str) {
  str = this != window? this : str;
  return str.replace(/^\s+/g, '').replace(/\s+$/g, '');
}

String.prototype.trim = trimString;

function isZip(strValue){
try{var country = document.getElementById("country")[document.getElementById("country").selectedIndex].value;}

catch(er) {if(country == null) {country = document.getElementById("country").value;}}	

	if (strValue == ''){return false};	
	
	if(country == "US" || country == "AU" || country == "CA") {
		isString(strValue);
		
		if(country == "CA"){
			var objRegExp  = /^\s*[a-ceghj-npr-tvxy]\d[a-z](\s)?\d[a-z]\d\s*$/i;
		}
		
		if(country == "US" || country == " ") {
			var objRegExp  = /(^\d{5}$)|(^\d{5}-\d{4}$)|(^\d{5}\s\d{4}$)/; 
		}

		strValue = strValue.trim();
					
		var zip = objRegExp.test(strValue);
		return zip;


	}	
	
}

function noDashes(strValue){
	var illegalChars = /\W/;
	if (illegalChars.test(strValue) == true) {return false;}
}

function radioChosen(str){
	var els = new Array;
	var radios = document.getElementsByTagName("input");
	var x = 0;
	var y = 0;
	for(i=0;i<radios.length;i++){
		if((radios[i].name == str) && (radios[i].type == "radio")){els[x] = radios[i];x++}
	}
	for(i=0;i<els.length;i++){
		if(els[i].checked) {y++;}
	}
	
	return (y>0);
}

function isNotEmpty(strValue){
	if(strValue == "" || strValue == null){return false;}
}

/* for group booking RFP */

function valDates() {
	var monthLength = new Array(31,28,31,30,31,30,31,31,30,31,30,31);
	var vyear1 = parseInt(document.getElementById("pref-start-year").value);
	var vyear2 = parseInt(document.getElementById("pref-end-year").value);
	var vmonth1 = parseInt(document.getElementById("pref-start-month").value);
	var vmonth2 = parseInt(document.getElementById("pref-end-month").value);
	var vday1 = parseInt(document.getElementById("pref-start-day").value);
	var vday2 = parseInt(document.getElementById("pref-end-day").value);
	
	// quick hack because calendar wasn't passing the current month
	var today = new Date();
	if (vmonth1 == 0)
		vmonth1 = today.getMonth() + 1;
	if (vmonth2 == 0)
		vmonth2 = today.getMonth() + 1;
	
	if (!vday1 || !vmonth1 || !vyear1)
		return false;
	
	if (vyear1/4 == parseInt(vyear1/4))
		monthLength[1] = 29;
	
	if (vday1 > monthLength[vmonth1-1])
		return false;
	
	monthLength[1] = 28;
	
	var now = new Date();
	now = now.getTime(); //NN3
	
	var dateToCheck1 = new Date();
	dateToCheck1.setYear(vyear1);
	dateToCheck1.setMonth(vmonth1-1);
	dateToCheck1.setDate(vday1);
	var checkDate1 = dateToCheck1.getTime();
	
	var dateToCheck2 = new Date();
	dateToCheck2.setYear(vyear2);
	dateToCheck2.setMonth(vmonth2-1);
	dateToCheck2.setDate(vday2);
	var checkDate2 = dateToCheck2.getTime();
	
	if(checkDate2 < checkDate1){
		return false;
	}

}

function calToday(which) {
	var monthLength = new Array(31,28,31,30,31,30,31,31,30,31,30,31);
	var vyear1 = parseFloat(document.getElementById(which + "-year").value);
	var vmonth1 = parseFloat(document.getElementById(which + "-month").value);
	var vday1 = parseFloat(document.getElementById(which + "-day").value);

	if (!vday1 || !vmonth1 || !vyear1)
		return false;
	
	if (vyear1/4 == parseInt(vyear1/4))
		monthLength[1] = 29;
	
	if (vday1 > monthLength[vmonth1-1])
		return false;
	
	monthLength[1] = 28;
	
	var now = new Date();
	now = now.getTime(); //NN3
	
	var dateToCheck = new Date();
	dateToCheck.setYear(vyear1);
	dateToCheck.setMonth(vmonth1-1);
	dateToCheck.setDate(vday1);
	var checkDate = dateToCheck.getTime();
	
	var futureDate = (now < checkDate);
	var pastDate = (now > checkDate);
	
	if(pastDate == true){
		return false;
	}else{
		return true;
	}

	
}

function textarea500(which){
	var countThis=document.getElementById(which).value;
	var length=countThis.length;
	
	if(length>500){
		return false;
	}
	
	
}