/* Event Functions */

// Add an event to the obj given
// event_name refers to the event trigger, without the "on", like click or mouseover
// func_name refers to the function callback when event is triggered
function addEvent(obj,event_name,func_name){
	if (obj.attachEvent){
		obj.attachEvent("on"+event_name, func_name);
	}else if(obj.addEventListener){
		obj.addEventListener(event_name,func_name,true);
	}else{
		obj["on"+event_name] = func_name;
	}
}

// Removes an event from the object
function removeEvent(obj,event_name,func_name){
	if (obj.detachEvent){
		obj.detachEvent("on"+event_name,func_name);
	}else if(obj.removeEventListener){
		obj.removeEventListener(event_name,func_name,true);
	}else{
		obj["on"+event_name] = null;
	}
}

// Stop an event from bubbling up the event DOM
function stopEvent(evt){
	evt || window.event;
	if (evt.stopPropagation){
		evt.stopPropagation();
		evt.preventDefault();
	}else if(typeof evt.cancelBubble != "undefined"){
		evt.cancelBubble = true;
		evt.returnValue = false;
	}
	return false;
}

// Get the obj that starts the event
function getElement(evt){
	if (window.event){
		return window.event.srcElement;
	}else{
		return evt.currentTarget;
	}
}
// Get the obj that triggers off the event
function getTargetElement(evt){
	if (window.event){
		return window.event.srcElement;
	}else{
		return evt.target;
	}
}
// For IE only, stops the obj from being selected
function stopSelect(obj){
	if (typeof obj.onselectstart != 'undefined'){
		addEvent(obj,"selectstart",function(){ return false;});
	}
}

/*    Caret Functions     */

// Get the end position of the caret in the object. Note that the obj needs to be in focus first
function getCaretEnd(obj){
	if(typeof obj.selectionEnd != "undefined"){
		return obj.selectionEnd;
	}else if(document.selection&&document.selection.createRange){
		var M=document.selection.createRange();
		try{
			var Lp = M.duplicate();
			Lp.moveToElementText(obj);
		}catch(e){
			var Lp=obj.createTextRange();
		}
		Lp.setEndPoint("EndToEnd",M);
		var rb=Lp.text.length;
		if(rb>obj.value.length){
			return -1;
		}
		return rb;
	}
}
// Get the start position of the caret in the object
function getCaretStart(obj){
	if(typeof obj.selectionStart != "undefined"){
		return obj.selectionStart;
	}else if(document.selection&&document.selection.createRange){
		var M=document.selection.createRange();
		try{
			var Lp = M.duplicate();
			Lp.moveToElementText(obj);
		}catch(e){
			var Lp=obj.createTextRange();
		}
		Lp.setEndPoint("EndToStart",M);
		var rb=Lp.text.length;
		if(rb>obj.value.length){
			return -1;
		}
		return rb;
	}
}
// sets the caret position to l in the object
function setCaret(obj,l){
	obj.focus();
	if (obj.setSelectionRange){
		obj.setSelectionRange(l,l);
	}else if(obj.createTextRange){
		m = obj.createTextRange();		
		m.moveStart('character',l);
		m.collapse();
		m.select();
	}
}
// sets the caret selection from s to e in the object
function setSelection(obj,s,e){
	obj.focus();
	if (obj.setSelectionRange){
		obj.setSelectionRange(s,e);
	}else if(obj.createTextRange){
		m = obj.createTextRange();		
		m.moveStart('character',s);
		m.moveEnd('character',e);
		m.select();
	}
}

/*    Escape function   */
String.prototype.addslashes = function(){
	return this.replace(/(["\\\.\|\[\]\^\*\+\?\$\(\)])/g, '\\$1');
}
String.prototype.trim = function () {
    return this.replace(/^\s*(\S*(\s+\S+)*)\s*$/, "$1");
};
/* --- Escape --- */

/* Offset position from top of the screen */
function curTop(obj){
	toreturn = 0;
	while(obj){
		toreturn += obj.offsetTop;
		obj = obj.offsetParent;
	}
	return toreturn;
}
function curLeft(obj){
	toreturn = 0;
	while(obj){
		toreturn += obj.offsetLeft;
		obj = obj.offsetParent;
	}
	return toreturn;
}
/* ------ End of Offset function ------- */

/* Types Function */

// is a given input a number?
function isNumber(a) {
    return typeof a == 'number' && isFinite(a);
}

/* Object Functions */

function replaceHTML(obj,text){
	while(el = obj.childNodes[0]){
		obj.removeChild(el);
	};
	obj.appendChild(document.createTextNode(text));
}

function showpopup(url){
    newwindow = window.open(url, 'name', 'height=500,width=540,scrollbars=1,menubar=0,resizable=0,');
        if (window.focus) { newwindow.focus() }
        return false;
    }
    function DoWaterMarkOnFocus(txt, text) {
        if (txt.value == text)
            txt.value = "";
    }
    function DoWaterMarkOnBlur(txt, text) {
        if (txt.value == "")
            txt.value = text;
    }
    function checkEnterMaster(e) { //e is event object passed from function invocation
        var characterCode //literal character code will be stored in this variable
        if (e && e.which) { //if which property of event object is supported (NN4)
            e = e
            characterCode = e.which //character code is contained in NN4's which property
        }
        else {
            //e = event;
            characterCode = e.keyCode //character code is contained in IE's keyCode property
        }

        if (characterCode == 13) { //if generated character code is equal to ascii 13 (if enter key)
            hideprogressMaster(); //Hide the progress bar
            return false
        }
        else {
            return true
        }
    }

    // Keep user from entering more than maxLength characters

    function doKeypress(control) {
        maxLength = control.attributes["maxLength"].value;
        value = control.value;
        if (maxLength && value.length > maxLength - 1) {
            event.returnValue = false;
            maxLength = parseInt(maxLength);
        }
    }
    // Cancel default behavior

    function doBeforePaste(control) {
        maxLength = control.attributes["maxLength"].value;
        if (maxLength) {
            event.returnValue = false;
        }
    }
    // Cancel default behavior and create a new paste routine

    function doPaste(control) {
        maxLength = control.attributes["maxLength"].value;
        value = control.value;
        if (maxLength) {
            event.returnValue = false;
            maxLength = parseInt(maxLength);
            var oTR = control.document.selection.createRange();
            var iInsertLength = maxLength - value.length + oTR.text.length;
            var sData = window.clipboardData.getData("Text").substr(0, iInsertLength);
            oTR.text = sData;
        }
    }
    function DoWaterMarkOnFocus(txt, text) {
        if (txt.value == text)
            txt.value = "";
    }
    function DoWaterMarkOnBlur(txt, text) {
        if (txt.value == "")
            txt.value = text;
    }
  
    var AlphabetsArray = new Array(188, 8, 32, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90);
    function IsAlphabetKeyDown(characterCode) {
        var returnvalue = false;
        for (var i = 0; i < AlphabetsArray.length; i++) {
            if (AlphabetsArray[i] == characterCode) {
                returnvalue = true;
            }
        }
        return returnvalue;
    }
    function IsNumeric(strString)
    //  check for valid numeric strings	
    {
        var strValidChars = "123456789";
        var strChar;
        var blnResult = true;

        if (strString.length == 0) return false;

        //  test strString consists of valid characters listed above
        for (i = 0; i < strString.length && blnResult == true; i++) {
            strChar = strString.charAt(i);
            if (strValidChars.indexOf(strChar) == -1) {
                blnResult = false;
            }
        }
        return blnResult;
    }