/**
 * COMMON DHTML FUNCTIONS
 * These are handy functions I use all the time.
 *
 * By Seth Banks (webmaster at subimage dot com)
 * http://www.subimage.com/
 *
 * Up to date code can be found at http://www.subimage.com/dhtml/
 *
 * This code is free for you to use anywhere, just keep this comment block.
 */

/**
 * X-browser event handler attachment and detachment
 * TH: Switched first true to false per http://www.onlinetools.org/articles/unobtrusivejavascript/chapter4.html
 *
 * @argument obj - the object to attach event to
 * @argument evType - name of the event - DONT ADD "on", pass only "mouseover", etc
 * @argument fn - function to call
 */
function addEvent(obj, evType, fn){
 if (obj.addEventListener){
    obj.addEventListener(evType, fn, false);
    return true;
 } else if (obj.attachEvent){
    var r = obj.attachEvent("on"+evType, fn);
    return r;
 } else {
    return false;
 }
}
function removeEvent(obj, evType, fn, useCapture){
  if (obj.removeEventListener){
    obj.removeEventListener(evType, fn, useCapture);
    return true;
  } else if (obj.detachEvent){
    var r = obj.detachEvent("on"+evType, fn);
    return r;
  } else {
    alert("Handler could not be removed");
  }
}

/**
 * Code below taken from - http://www.evolt.org/article/document_body_doctype_switching_and_more/17/30655/
 *
 * Modified 4/22/04 to work with Opera/Moz (by webmaster at subimage dot com)
 *
 * Gets the full width/height because it's different for most browsers.
 */
function getDocHeight() {
    if (document.body.scrollHeight) return document.body.scrollHeight;
    return document.documentElement.offsetHeight;	
}
function getDocWidth() {
    if (document.body.scrollWidth) return document.body.scrollWidth;
    var w = document.documentElement.offsetWidth;
    if (window.scrollMaxX) w += window.scrollMaxX;
    return w;
}
function getViewportHeight() {
	if (window.innerHeight!=window.undefined) return window.innerHeight;
	if (document.compatMode=='CSS1Compat') return document.documentElement.clientHeight;
	if (document.body) return document.body.clientHeight; 
	return window.undefined; 
}
function getViewportWidth() {
	if (window.innerWidth!=window.undefined) return window.innerWidth + 90;
	if (document.compatMode=='CSS1Compat') return document.documentElement.clientWidth + 90;
	if (document.body) return document.body.clientWidth + 90;
	return window.undefined;
}


function stateChanged() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
{ 
document.getElementById("txtHint").innerHTML=xmlHttp.responseText 
} 
} 

function GetXmlHttpObject()
{ 
var objXMLHttp=null
if (window.XMLHttpRequest)
{
objXMLHttp=new XMLHttpRequest()
}
else if (window.ActiveXObject)
{
objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
}
return objXMLHttp
}
//-------------------------------------------------------------------
// Trim functions
//   Returns string with whitespace trimmed
//-------------------------------------------------------------------
function LTrim(str){
	if (str==null){return null;}
	for(var i=0;str.charAt(i)==" ";i++);
	return str.substring(i,str.length);
	}
function RTrim(str){
	if (str==null){return null;}
	for(var i=str.length-1;str.charAt(i)==" ";i--);
	return str.substring(0,i+1);
	}
function Trim(str){return LTrim(RTrim(str));}
function LTrimAll(str) {
	if (str==null){return str;}
	for (var i=0; str.charAt(i)==" " || str.charAt(i)=="\n" || str.charAt(i)=="\t"; i++);
	return str.substring(i,str.length);
	}
function RTrimAll(str) {
	if (str==null){return str;}
	for (var i=str.length-1; str.charAt(i)==" " || str.charAt(i)=="\n" || str.charAt(i)=="\t"; i--);
	return str.substring(0,i+1);
	}
function TrimAll(str) {
	return LTrimAll(RTrimAll(str));
	}
//-------------------------------------------------------------------
// isNull(value)
//   Returns true if value is null
//-------------------------------------------------------------------
function isNull(val){return(val==null);}

//-------------------------------------------------------------------
// isBlank(value)
//   Returns true if value only contains spaces
//-------------------------------------------------------------------
function isBlank(val){
	if(val==null){return true;}
	for(var i=0;i<val.length;i++) {
		if ((val.charAt(i)!=' ')&&(val.charAt(i)!="\t")&&(val.charAt(i)!="\n")&&(val.charAt(i)!="\r")){return false;}
		}
	return true;
	}

//-------------------------------------------------------------------
// isInteger(value)
//   Returns true if value contains all digits
//-------------------------------------------------------------------
function isInteger(val){
	if (isBlank(val)){return false;}
	for(var i=0;i<val.length;i++){
		if(!isDigit(val.charAt(i))){return false;}
		}
	return true;
	}

//-------------------------------------------------------------------
// isNumeric(value)
//   Returns true if value contains a positive float value
//-------------------------------------------------------------------
function isNumeric(val){return(parseFloat(val,10)==(val*1));}

//-------------------------------------------------------------------
// isArray(obj)
// Returns true if the object is an array, else false
//-------------------------------------------------------------------
function isArray(obj){return(typeof(obj.length)=="undefined")?false:true;}

//-------------------------------------------------------------------
// isDigit(value)
//   Returns true if value is a 1-character digit
//-------------------------------------------------------------------
function isDigit(num) {
	if (num.length>1){return false;}
	var string="1234567890";
	if (string.indexOf(num)!=-1){return true;}
	return false;
	}

//-------------------------------------------------------------------
// setNullIfBlank(input_object)
//   Sets a form field to "" if it isBlank()
//-------------------------------------------------------------------
function setNullIfBlank(obj){if(isBlank(obj.value)){obj.value="";}}

//-------------------------------------------------------------------
// setFieldsToUpperCase(input_object)
//   Sets value of form field toUpperCase() for all fields passed
//-------------------------------------------------------------------
function setFieldsToUpperCase(){
	for(var i=0;i<arguments.length;i++) {
		arguments[i].value = arguments[i].value.toUpperCase();
		}
	}

//-------------------------------------------------------------------
// disallowBlank(input_object[,message[,true]])
//   Checks a form field for a blank value. Optionally alerts if 
//   blank and focuses
//-------------------------------------------------------------------
function disallowBlank(obj){
	var msg=(arguments.length>1)?arguments[1]:"";
	var dofocus=(arguments.length>2)?arguments[2]:false;
	if (isBlank(getInputValue(obj))){
		if(!isBlank(msg)){alert(msg);}
		if(dofocus){
			if (isArray(obj) && (typeof(obj.type)=="undefined")) {obj=obj[0];}
			if(obj.type=="text"||obj.type=="textarea"||obj.type=="password") { obj.select(); }
			obj.focus();
			}
		return true;
		}
	return false;
	}

//-------------------------------------------------------------------
// disallowModify(input_object[,message[,true]])
//   Checks a form field for a value different than defaultValue. 
//   Optionally alerts and focuses
//-------------------------------------------------------------------
function disallowModify(obj){
	var msg=(arguments.length>1)?arguments[1]:"";
	var dofocus=(arguments.length>2)?arguments[2]:false;
	if (getInputValue(obj)!=getInputDefaultValue(obj)){
		if(!isBlank(msg)){alert(msg);}
		if(dofocus){
			if (isArray(obj) && (typeof(obj.type)=="undefined")) {obj=obj[0];}
			if(obj.type=="text"||obj.type=="textarea"||obj.type=="password") { obj.select(); }
			obj.focus();
			}
		setInputValue(obj,getInputDefaultValue(obj));
		return true;
		}
	return false;
	}

//-------------------------------------------------------------------
// commifyArray(array[,delimiter])
//   Take an array of values and turn it into a comma-separated string
//   Pass an optional second argument to specify a delimiter other than
//   comma.
//-------------------------------------------------------------------
function commifyArray(obj,delimiter){
	if (typeof(delimiter)=="undefined" || delimiter==null) {
		delimiter = ",";
		}
	var s="";
	if(obj==null||obj.length<=0){return s;}
	for(var i=0;i<obj.length;i++){
		s=s+((s=="")?"":delimiter)+obj[i].toString();
		}
	return s;
	}

//-------------------------------------------------------------------
// getSingleInputValue(input_object,use_default,delimiter)
//   Utility function used by others
//-------------------------------------------------------------------
function getSingleInputValue(obj,use_default,delimiter) {
	switch(obj.type){
		case 'radio': case 'checkbox': return(((use_default)?obj.defaultChecked:obj.checked)?obj.value:null);
		case 'text': case 'hidden': case 'textarea': return(use_default)?obj.defaultValue:obj.value;
		case 'password': return((use_default)?null:obj.value);
		case 'select-one':
			if (obj.options==null) { return null; }
			if(use_default){
				var o=obj.options;
				for(var i=0;i<o.length;i++){if(o[i].defaultSelected){return o[i].value;}}
				return o[0].value;
				}
			if (obj.selectedIndex<0){return null;}
			return(obj.options.length>0)?obj.options[obj.selectedIndex].value:null;
		case 'select-multiple': 
			if (obj.options==null) { return null; }
			var values=new Array();
			for(var i=0;i<obj.options.length;i++) {
				if((use_default&&obj.options[i].defaultSelected)||(!use_default&&obj.options[i].selected)) {
					values[values.length]=obj.options[i].value;
					}
				}
			return (values.length==0)?null:commifyArray(values,delimiter);
		}
	alert("FATAL ERROR: Field type "+obj.type+" is not supported for this function");
	return null;
	}

//-------------------------------------------------------------------
// getSingleInputText(input_object,use_default,delimiter)
//   Utility function used by others
//-------------------------------------------------------------------
function getSingleInputText(obj,use_default,delimiter) {
	switch(obj.type){
		case 'radio': case 'checkbox': 	return "";
		case 'text': case 'hidden': case 'textarea': return(use_default)?obj.defaultValue:obj.value;
		case 'password': return((use_default)?null:obj.value);
		case 'select-one':
			if (obj.options==null) { return null; }
			if(use_default){
				var o=obj.options;
				for(var i=0;i<o.length;i++){if(o[i].defaultSelected){return o[i].text;}}
				return o[0].text;
				}
			if (obj.selectedIndex<0){return null;}
			return(obj.options.length>0)?obj.options[obj.selectedIndex].text:null;
		case 'select-multiple': 
			if (obj.options==null) { return null; }
			var values=new Array();
			for(var i=0;i<obj.options.length;i++) {
				if((use_default&&obj.options[i].defaultSelected)||(!use_default&&obj.options[i].selected)) {
					values[values.length]=obj.options[i].text;
					}
				}
			return (values.length==0)?null:commifyArray(values,delimiter);
		}
	alert("FATAL ERROR: Field type "+obj.type+" is not supported for this function");
	return null;
	}

//-------------------------------------------------------------------
// setSingleInputValue(input_object,value)
//   Utility function used by others
//-------------------------------------------------------------------
function setSingleInputValue(obj,value) {
	switch(obj.type){
		case 'radio': case 'checkbox': if(obj.value==value){obj.checked=true;return true;}else{obj.checked=false;return false;}
		case 'text': case 'hidden': case 'textarea': case 'password': obj.value=value;return true;
		case 'select-one': case 'select-multiple': 
			var o=obj.options;
			for(var i=0;i<o.length;i++){
				if(o[i].value==value){o[i].selected=true;}
				else{o[i].selected=false;}
				}
			return true;
		}
	alert("FATAL ERROR: Field type "+obj.type+" is not supported for this function");
	return false;
	}

//-------------------------------------------------------------------
// getInputValue(input_object[,delimiter])
//   Get the value of any form input field
//   Multiple-select fields are returned as comma-separated values, or
//   delmited by the optional second argument
//   (Doesn't support input types: button,file,reset,submit)
//-------------------------------------------------------------------
function getInputValue(obj,delimiter) {
	var use_default=(arguments.length>2)?arguments[2]:false;
	if (isArray(obj) && (typeof(obj.type)=="undefined")) {
		var values=new Array();
		for(var i=0;i<obj.length;i++){
			var v=getSingleInputValue(obj[i],use_default,delimiter);
			if(v!=null){values[values.length]=v;}
			}
		return commifyArray(values,delimiter);
		}
	return getSingleInputValue(obj,use_default,delimiter);
	}

//-------------------------------------------------------------------
// getInputText(input_object[,delimiter])
//   Get the displayed text of any form input field
//   Multiple-select fields are returned as comma-separated values, or
//   delmited by the optional second argument
//   (Doesn't support input types: button,file,reset,submit)
//-------------------------------------------------------------------
function getInputText(obj,delimiter) {
	var use_default=(arguments.length>2)?arguments[2]:false;
	if (isArray(obj) && (typeof(obj.type)=="undefined")) {
		var values=new Array();
		for(var i=0;i<obj.length;i++){
			var v=getSingleInputText(obj[i],use_default,delimiter);
			if(v!=null){values[values.length]=v;}
			}
		return commifyArray(values,delimiter);
		}
	return getSingleInputText(obj,use_default,delimiter);
	}

//-------------------------------------------------------------------
// getInputDefaultValue(input_object[,delimiter])
//   Get the default value of any form input field when it was created
//   Multiple-select fields are returned as comma-separated values, or
//   delmited by the optional second argument
//   (Doesn't support input types: button,file,password,reset,submit)
//-------------------------------------------------------------------
function getInputDefaultValue(obj,delimiter){return getInputValue(obj,delimiter,true);}

//-------------------------------------------------------------------
// isChanged(input_object)
//   Returns true if input object's value has changed since it was
//   created.
//-------------------------------------------------------------------
function isChanged(obj){return(getInputValue(obj)!=getInputDefaultValue(obj));}

//-------------------------------------------------------------------
// setInputValue(obj,value)
//   Set the value of any form field. In cases where no matching value
//   is available (select, radio, etc) then no option will be selected
//   (Doesn't support input types: button,file,password,reset,submit)
//-------------------------------------------------------------------
function setInputValue(obj,value) {
	var use_default=(arguments.length>1)?arguments[1]:false;
	if(isArray(obj)&&(typeof(obj.type)=="undefined")){
		for(var i=0;i<obj.length;i++){setSingleInputValue(obj[i],value);}
		}
	else{setSingleInputValue(obj,value);}
	}
	
//-------------------------------------------------------------------
// isFormModified(form_object,hidden_fields,ignore_fields)
//   Check to see if anything in a form has been changed. By default
//   it will check all visible form elements and ignore all hidden 
//   fields. 
//   You can pass a comma-separated list of field names to check in
//   addition to visible fields (for hiddens, etc).
//   You can also pass a comma-separated list of field names to be
//   ignored in the check.
//-------------------------------------------------------------------
function isFormModified(theform,hidden_fields,ignore_fields){
	if(hidden_fields==null){hidden_fields="";}
	if(ignore_fields==null){ignore_fields="";}
	var hiddenFields=new Object();
	var ignoreFields=new Object();
	var i,field;
	var hidden_fields_array=hidden_fields.split(',');
	for (i=0;i<hidden_fields_array.length;i++) {
		hiddenFields[Trim(hidden_fields_array[i])]=true;
		}
	var ignore_fields_array=ignore_fields.split(',');
	for (i=0;i<ignore_fields_array.length;i++) {
		ignoreFields[Trim(ignore_fields_array[i])]=true;
		}
	for (i=0;i<theform.elements.length;i++) {
		var changed=false;
		var name=theform.elements[i].name;
		if(!isBlank(name)){
			var type=theform.elements[i].type;
			if(!ignoreFields[name]){
				if(type=="hidden"&&hiddenFields[name]){changed=isChanged(theform[name]);}
				else if(type=="hidden"){changed=false;}
				else {changed=isChanged(theform[name]);}
				}
			}
		if(changed){return true;}
		}
		return false;
	}


//---------------------------------------------------------------
//CURRENCY FORMATTING FUNCTIONS
//---------------------------------------------------------------

        function CommaFormatted(elem){
            var delimiter=",",value=formatCurrency(elem.value.cleanNumber()),a=value.split('.',2),d=a[1],i=parseInt(a[0]),minus='';
            if(i<0) {minus='-';}
            i=Math.abs(i);
            var n=new String(i),a=[];
            while(n.length>3){
                var nn=n.substring(n.length-3);
                 a.unshift(nn);
            n=n.substring(0,n.length-3);
            };
            if(n.length>0){a.unshift(n);};
            n=a.join(delimiter);
            if(!d){value=n;}else{value=n+'.'+d;};
            if(d==""){value+='.'};
            if(value=="NaN"){value=""};
            elem.value = minus + value;
        };
        
//        function formatCurrency(num) {
//            num = num.cleanNumber();
//            var dec = '.';
//            var group = ',';
//            num = num.toString().replace(/\$|\,/g,'');
//            if(isNaN(num))
//                num = "0";
//            sign = (num == (num = Math.abs(num)));
//            num = Math.floor(num*100+0.50000000001);
//            cents = num%100;
//            num = Math.floor(num/100).toString();
//            if(cents<10)
//                cents = "0" + cents;
//            for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
//                num = num.substring(0,num.length-(4*i+3)) + group + num.substring(num.length-(4*i+3));
//            return (((sign)?'':'-') + num + dec + cents);
//        };
//        
        String.prototype.cleanNumber = function(){
            var number = this.trim();
            
            number = number.replace(/,/g,'');
            number = number.replace(/$/g,'');
            //alert('number:' + number);
           return parseFloat(number);
       };
       
       String.prototype.trim = function() {
            return this.replace(/^\s+|\s+$/g,"");
       };

String.prototype.formatCurrency = function() {
    //alert(this);
    if (this == '0' || this == 0){
         return '0.00';
    }
    var amount = this.cleanNumber();
    var i = parseFloat(amount);

    if(isNaN(i)) { i = 0.00; }
    var minus = '';
    if(i < 0) { minus = '-'; }
    i = Math.abs(i);
    i = parseInt((i + .005) * 100);
    i = i / 100;
    s = new String(i);
    if(s.indexOf('.') < 0) { s += '.00'; }
    if(s.indexOf('.') == (s.length - 2)) { s += '0'; }
    s = minus + s;
    s = s.formatComma();
    return s;
}

String.prototype.formatComma = function() {
    var amount = this;
    var delimiter = ","; // replace comma if desired
    var a = amount.split('.',2)
    var d = a[1];
    var i = parseInt(a[0]);
    if(isNaN(i)) { return ''; }
    var minus = '';
    if(i < 0) { minus = '-'; }
    i = Math.abs(i);
    var n = new String(i);
    var a = [];
    while(n.length > 3)
    {
    var nn = n.substr(n.length-3);
    a.unshift(nn);
    n = n.substr(0,n.length-3);
    }
    if(n.length > 0) { a.unshift(n); }
    n = a.join(delimiter);
    if(d.length < 1) { amount = n; }
    else { amount = n + '.' + d; }
    amount = minus + amount;
    return amount;
}