/*
    Written by Jonathan Snook, http://www.snook.ca/jonathan
    Add-ons by Robert Nyman, http://www.robertnyman.com
*/

function getElementsByClassName(oElm, strTagName, strClassName){
    var arrElements = (strTagName == "*" && document.all)? document.all : 
    oElm.getElementsByTagName(strTagName);
    var arrReturnElements = new Array();
    strClassName = strClassName.replace(/\-/g, "\\-");
    var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
    var oElement;
    for(var i=0; i<arrElements.length; i++){
        oElement = arrElements[i];      
        if(oRegExp.test(oElement.className)){
            arrReturnElements.push(oElement);
        }   
    }
    return (arrReturnElements)
}





/*
    Preload images
*/

function validate(theForm)
	{
	var returnFlag = true;
	var frmLength;
	var firstBlank;
	var strEmailAddress;
	var strPhoneNumber;
	var strNewPhone = "";
	var strPhoneLength;
	var strMessage;
		
	var arrReqFields = getElementsByClassName(document.getElementById(theForm.id), "*", "required");
	
	strMessage = "Please complete all required fields."
	firstBlank = -1;
	
	// loop through fields to clear out default values
	frmLength = arrReqFields.length;
	
	for (i=0; i<frmLength;i++){ 
		if(arrReqFields[i].value == "")
		{
			
			arrReqFields[i].className = "required warning";
			returnFlag = false;
			if(firstBlank == -1) {
				firstBlank = i
			}
		}
		else if(arrReqFields[i].id == "email") {
			strEmailAddress = arrReqFields[i].value;
			intAtPosition = strEmailAddress.indexOf("@");
			intLastDotPosition = strEmailAddress.lastIndexOf(".");
			if((strEmailAddress=="") || (intAtPosition == 0) || (intAtPosition == 1) || (intLastDotPosition == -1) || (intAtPosition > intLastDotPosition) || (intLastDotPosition+1 == strEmailAddress.length)){
				arrReqFields[i].className = "required warning";
				returnFlag = false;
				if(firstBlank == -1) {
					firstBlank = i;
					strMessage = "Please enter a valid email address";
					
				}
			}
		}
		else if(arrReqFields[i].name.indexOf('phone') != -1 || arrReqFields[i].name.indexOf('fax') != -1) {
			// check to make sure phone numbers are 10 digits for phone and fax numbers
			strPhoneNumber = arrReqFields[i].value;
			strPhoneLength = strPhoneNumber.length;
			strNewPhone = "";
			
			if (strPhoneLength >= 10)
			{
				// strip out non-numeric characters
				for(var j=0;j<strPhoneLength;j++)
				{
					if(isDigit(strPhoneNumber.charAt(j)))
					{
						strNewPhone = strNewPhone + strPhoneNumber.charAt(j);
					}
				}
				if (strNewPhone.length != 10)
				{
					// phone number value invalid
					arrReqFields[i].className = "required warning";
					returnFlag = false;
					if(firstBlank == -1)
					{
						firstBlank = i;
						strMessage = "Please enter a valid phone number";
					}
				}
				else
				{
					arrReqFields[i].className = "required";
					arrReqFields[i].value = strNewPhone.substring(0,3) + "-" + strNewPhone.substring(3,6) + "-" + strNewPhone.substring(6,10);
				}
				
			}
			else
			{
				// phone number value too short
				arrReqFields[i].className = "required warning";
				returnFlag = false;
				if(firstBlank == -1) {
					firstBlank = i;
					strMessage = "Please enter a valid phone number";
					
				}
			}
		}
		else {
			arrReqFields[i].className = "required";
		}
	}
	
	// validate any required check boxes
	var arrReqChecks = getElementsByClassName(document.getElementById(theForm.id), "*", "reqcheck");
	var chkDone = false;
	
	frmLength = arrReqChecks.length;
	
	if(returnFlag == true && frmLength != 0)
	{ 
		returnFlag = false;
		
		for (i=0; i<frmLength;i++)
			{
				if(arrReqChecks[i].checked == false)
				{
					// checkbox is empty
				}
				else {
					chkDone = true;
					i = frmLength;
					returnFlag = true;
				}
			}
		
		if(returnFlag == false)
		{
			returnFlag = false;
			strMessage = "You must check at least one checkbox to continue.";
			firstBlank = 1;
		}
	}
		
	// check any other email addresses for errors
	var arrEmails = getElementsByClassName(document.getElementById(theForm.id), "*", "emailfield");
	
	frmLength = arrEmails.length;

	for (i=0; i<frmLength;i++)
		{
			strEmailAddress = arrEmails[i].value;
			if(strEmailAddress != "")
			{
				intAtPosition = strEmailAddress.indexOf("@");
				intLastDotPosition = strEmailAddress.lastIndexOf(".");
				if((strEmailAddress=="") || (intAtPosition == 0) || (intAtPosition == 1) || (intLastDotPosition == -1) || (intAtPosition > intLastDotPosition) || (intLastDotPosition+1 == strEmailAddress.length)){
					arrEmails[i].className = "emailfield warning";
					returnFlag = false;
					if(firstBlank == -1) {
						firstBlank = i;
						strMessage = "Please enter a valid email address.";
						
					}
				}
				else { arrEmails[i].className = "emailfield"; }
			}
			else { arrEmails[i].className = "emailfield"; }
		}
		
	// check any other phone fields for errors
	var arrPhones = getElementsByClassName(document.getElementById(theForm.id), "*", "phonefield");
	
	frmLength = arrPhones.length;

	for (i=0; i<frmLength;i++)
		{
			if(arrPhones[i].value != "")
			{
				// check to make sure phone numbers are 10 digits
				strPhoneNumber = arrPhones[i].value;
				strPhoneLength = strPhoneNumber.length;
				strNewPhone = "";
				
				if (strPhoneLength >= 10)
				{
					// strip out non-numeric characters
					for(var j=0;j<strPhoneLength;j++)
					{
						if(isDigit(strPhoneNumber.charAt(j)))
						{
							strNewPhone = strNewPhone + strPhoneNumber.charAt(j);
						}
					}
					if (strNewPhone.length != 10)
					{
						// phone number value invalid
						arrPhones[i].className = "phonefield warning";
						returnFlag = false;
						if(firstBlank == -1)
						{
							firstBlank = i;
							strMessage = "Please enter a valid phone number";
						}
					}
					else
					{
						arrPhones[i].className = "phonefield";
						arrPhones[i].value = strNewPhone.substring(0,3) + "-" + strNewPhone.substring(3,6) + "-" + strNewPhone.substring(6,10);
					}
					
				}
				else
				{
					// phone number value too short
					arrPhones[i].className = "phonefield warning";
					returnFlag = false;
					if(firstBlank == -1) {
						firstBlank = i;
						strMessage = "Please enter a valid phone number";
						
					}
				}
			}
		}


	
	if(document.getElementById('sigcheck'))
		{
			if(returnFlag == true)
			{
				if(document.getElementById('sigcheck').checked == false)
				{
					returnFlag = false;
					strMessage = "You must check the checkbox to continue.";
					firstBlank = 1;
				}
			}
		}
		
	if(returnFlag == false)
		{
			alert(strMessage);
			arrReqFields[firstBlank].focus()
		}
		
	return returnFlag;
	}


//Print function

function printit(){
    if (window.print) {
        window.print() ;
    } else {
        alert('Please use the print feature of your browser.');
    }
}