function validate_form(thisform){
	for (i=0; i<thisform.elements.length; i++){
		if (thisform.elements[i].className=="required" && thisform.elements[i].disabled==false) {
			switch(thisform.elements[i].type) {
				case "text":
				if (validate_text(thisform.elements[i])==false) {
					return false;
				}
				break
				case "textarea":
				if (validate_text(thisform.elements[i])==false) {
					return false;
				}
				break
				case "select-one":
				if (validate_select(thisform.elements[i])==false) {
					return false;
				}
				break
				case "select-multiple":
				if (validate_select(thisform.elements[i])==false) {
					return false;
				}
				break
				case "checkbox":
				if (validate_checkbox(thisform.elements[i])==false) {
					return false;
				}
				break
				case "radio":
				if (validate_radio(i,thisform)==false) {
					return false;
				}
				i=i+document.getElementsByName(thisform.elements[i].name).length-1
				break
			}
		}
	}
}

function validate_text(field){
	isDate = new RegExp(/.*date.*/);
	if (isDate.test(field.name)) {
		if (validate_date(field.value)==false) {
			return false;
		}
	}
	switch(field.name) {
		case "phone":
		if (validate_phone(field)==false) {
			return false;
		}
		break
		case "fax":
		if (validate_phone(field)==false) {
			return false;
		}
		break
		case "email":
		if (validate_email(field)==false) {
			return false;
		}
		break
		case "zip":
		if (validate_zip(field)==false) {
			return false;
		}
		break
		case "zipcode":
		if (validate_zip(field)==false) {
			return false;
		}
		break
		default:
		if (field.value==null||field.value=="") {
			message_invalid(field);
			return false;
		}
	}
}

function validate_email(field){
	apos=field.value.indexOf("@");
	dotpos=field.value.lastIndexOf(".");
	if (apos<1||dotpos-apos<2) {
		message_invalid(field);
		return false;
	}
}

function validate_phone(field) {
	field.value = field.value.replace(/[^0-9]/g, '')
	if (field.value.length<10) {
		message_invalid(field);
		return false;
	}
}

function validate_zip(field){
	reZip = new RegExp(/(^\d{5}$)|(^\d{5}-\d{4}$)/);
	if (!reZip.test(field.value)) {
		message_invalid(field);
		return false;
	}
}

function validate_select(field){
	if (field.value==null||field.value=="") {
		message_invalid(field);
		return false;
	}
}


function validate_checkbox(field){
	if (!field.checked) {
		message_invalid(field);
		return false;
	}
}

function validate_radio(i,thisform){
	on=0
	for (thename=thisform.elements[i].name; thename==thisform.elements[i].name; i++) {
		if (thisform.elements[i].checked){
			on=1
		}
	}
	if (on==0) {
		message_invalid(field);
		return false;
	}
}


//Start Date Validation Code
var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function validate_date(dtStr){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strMonth=dtStr.substring(0,pos1)
	var strDay=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		alert("The date format should be : mm/dd/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter a valid date")
		return false
	}
return true
}

function message_invalid(field) {
	var xmlHttp;
	try {
		xmlHttp=new XMLHttpRequest();
	}  
	catch (e) {
		try {
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e) {
			try {
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e) {
				alert("Please fill in all required fields");
	      		return false;
	  		}}}
	 
	xmlHttp.onreadystatechange=function() {
		if(xmlHttp.readyState==4) {
			if (xmlHttp.responseText==null||xmlHttp.responseText=="") {
				alert("Please fill in all required fields");
			} else {
				alert(xmlHttp.responseText);
			}
		}
	}
	xmlHttp.open("GET","/dhtml/validator_alert.php?name=" + field.name.replace("[]",""),true);
	xmlHttp.send(null);
}
//End Date Validation Code

//functions to check/set state/zip/country fields
function check_state(object) {
	var ozip=object.form.zip;
	var ocountry=object.form.country;
	if (object.options[object.selectedIndex].value == "--") {
		ozip.disabled = true;
		ozip.value = "N/A";
		ocountry.selectedIndex = 0;
		ocountry.focus();
	} else {
		ozip.value = "";
		ozip.disabled = false;
		ocountry.selectedIndex = 2;
	}
}

function check_country(object) {
	var ostate=object.form.state;
	var ozip=object.form.zip;
	if (object.options[object.selectedIndex].value == "US") {
		ozip.value = "";
		ozip.disabled = false;
		ostate.selectedIndex = 0;
		ostate.focus();
	} else {
		ozip.disabled = true;
		ozip.value = "N/A";
		ostate.selectedIndex = 2;
	}
}