<!-- This script is based on the javascript code of Roman Feldblum (web.developer@programmer.net) -->
<!-- Original script : http://javascript.internet.com/forms/format-phone-number.html -->
<!-- Original script is revised by Eralper Yilmaz (http://www.eralper.com) -->
<!-- Revised script : http://www.kodyaz.com -->
<!-- Format : "(123) 456-7890" -->

var zChar = new Array(' ', '(', ')', '-', '.');
var maxphonelength = 14;
var phonevalue1;
var phonevalue2;
var cursorposition;

function ParseForNumber1(object){
  phonevalue1 = ParseChar(object.value, zChar);
}

function ParseForNumber2(object){
  phonevalue2 = ParseChar(object.value, zChar);
}

function backspacerUP(object,e) {
  if(e){
    e = e
  } else {
    e = window.event
  }
  if(e.which){
    var keycode = e.which
  } else {
    var keycode = e.keyCode
  }

  ParseForNumber1(object)

  if(keycode >= 48){
    ValidatePhone(object)
  }
}

function backspacerDOWN(object,e) {
  if(e){
    e = e
  } else {
    e = window.event
  }
  if(e.which){
    var keycode = e.which
  } else {
    var keycode = e.keyCode
  }
  ParseForNumber2(object)
}

function GetCursorPosition(){

  var t1 = phonevalue1;
  var t2 = phonevalue2;
  var bool = false
  for (i=0; i<t1.length; i++)
  {
    if (t1.substring(i,1) != t2.substring(i,1)) {
      if(!bool) {
        cursorposition=i
        window.status=cursorposition
        bool=true
      }
    }
  }
}

function ValidatePhone(object){

  var p = phonevalue1

  p = p.replace(/[^\d]*/gi,"")

  if (p.length < 3) {
    object.value=p
  } else if(p.length==3){
    pp=p;
    d4=p.indexOf('(')
    d5=p.indexOf(')')
    if(d4==-1){
      pp="("+pp;
    }
    if(d5==-1){
      pp=pp+")";
    }
    object.value = pp;
  } else if(p.length>3 && p.length < 7){
    p ="(" + p;
    l30=p.length;
    p30=p.substring(0,4);
    p30=p30+") ";
    
    p31=p.substring(4,l30);
    pp=p30+p31;

    object.value = pp;

  } else if(p.length >= 7){
    p ="(" + p;
    l30=p.length;
    p30=p.substring(0,4);
    p30=p30+") ";

    p31=p.substring(4,l30);
    pp=p30+p31;

    l40 = pp.length;
    p40 = pp.substring(0,9);
    p40 = p40 + "-";

    p41 = pp.substring(9,l40);
    ppp = p40 + p41;

    object.value = ppp.substring(0, maxphonelength);
  }

  GetCursorPosition();

  if(cursorposition >= 0){
    if (cursorposition == 0) {
      cursorposition = 2
    } else if (cursorposition <= 2) {
      cursorposition = cursorposition + 1
    } else if (cursorposition <= 4) {
      cursorposition = cursorposition + 3
    } else if (cursorposition == 5) {
      cursorposition = cursorposition + 3
    } else if (cursorposition == 6) {
      cursorposition = cursorposition + 3
    } else if (cursorposition == 7) {
      cursorposition = cursorposition + 4
    } else if (cursorposition == 8) {
      cursorposition = cursorposition + 4
      e1=object.value.indexOf(')')
      e2=object.value.indexOf('-')
      if (e1>-1 && e2>-1){
        if (e2-e1 == 4) {
          cursorposition = cursorposition - 1
        }
      }
    } else if (cursorposition == 9) {
      cursorposition = cursorposition + 4
    } else if (cursorposition < 11) {
      cursorposition = cursorposition + 3
    } else if (cursorposition == 11) {
      cursorposition = cursorposition + 1
    } else if (cursorposition == 12) {
      cursorposition = cursorposition + 1
    } else if (cursorposition >= 13) {
      cursorposition = cursorposition
    }

    var txtRange = object.createTextRange();
    txtRange.moveStart( "character", cursorposition);
    txtRange.moveEnd( "character", cursorposition - object.value.length);
    txtRange.select();
  }

}

function ParseChar(sStr, sChar)
{
  if (sChar.length == null)
  {
    zChar = new Array(sChar);
  }
  else
  	zChar = sChar;

  for (i=0; i<zChar.length; i++)
  {
    sNewStr = "";

    var iStart = 0;
    var iEnd = sStr.indexOf(sChar[i]);

    while (iEnd != -1)
    {
      sNewStr += sStr.substring(iStart, iEnd);
      iStart = iEnd + 1;
      iEnd = sStr.indexOf(sChar[i], iStart);
    }
    sNewStr += sStr.substring(sStr.lastIndexOf(sChar[i]) + 1, sStr.length);

    sStr = sNewStr;
  }

  return sNewStr;
}


function isNumb(s) {
  if ( (s == '0') || (s == '1') || (s == '2') || (s == '3') ||
       (s == '4') || (s == '5') || (s == '6') || (s == '7') ||
       (s == '8') || (s == '9')
     )
      { return true;}
 else {return false;}

}

function ValidatePhoneFinal(m) {
var p;
var p0;
var p1;
var p2;
var p3;
var p4;
var p5;
var p6;
var p7;
var p8;
var p9;
var p10;
var p11;
var p12;
var p13;
var tov;

p=m.value;
	
     if(p.length > 0)
     {
		if(p.length==14){
         	p0 = p.substr(0,1);
         	p1 = p.substr(1,1);
         	p2 = p.substr(2,1);
         	p3 = p.substr(3,1);
         	p4 = p.substr(4,1);
         	p5 = p.substr(5,1);
         	p6 = p.substr(6,1);
         	p7 = p.substr(7,1);
         	p8 = p.substr(8,1);
         	p9 = p.substr(9,1);
         	p10 = p.substr(10,1);
         	p11 = p.substr(11,1);
         	p12 = p.substr(12,1);
         	p13 = p.substr(13,1);

	   		if ( (p0 == '(') && (isNumb(p1)) && (isNumb(p2)) && (isNumb(p3)) 
				&& (p4 == ')') && (p5 == ' ') && (isNumb(p6)) && (isNumb(p7)) && (isNumb(p8))
				&& (p9 == '-') && (isNumb(p10)) && (isNumb(p11))
				&& (isNumb(p12)) && (isNumb(p13))
	      		)
	   		{
	   			return true; 
	   		}
	   		else 
	   		{  
				alert("The phone number entered is not valid. Please only enter numerics. '(', ') ' and '-' will be filled in automatically.");
    			tov = setTimeout("setFocus('" + m.id + "');", 1);
	  			return false;
	   		}
		}
		else
 		{  
	  		alert("The phone number entered must be like (800) 123-4567. Please re-enter with only numerics. '(', ') ' and '-' will be filled in automatically.");
    		tov = setTimeout("setFocus('" + m.id + "');", 1);
	  		return false;
		}
    }
	return true; 
}

//set focus work around for FF and cursor at end of textbox for IE
function setFocus(id) {
	var control = document.getElementById(id);
	pp = control.value;
	setCaretPosition(id, pp.length);
}


//onfocus
function getIt(m){
	var n=m.name;
	var fieldname=m.name;
	var formname = m.form.name;	//'document.forms[0]';	//td 8/7/09 problem when using same js in many forms in 1 page
	var fdis = formname + '.' + fieldname + '.disabled == true';
	//alert(eval(fdis));
	if (eval(fdis))	// if the field is disabled, don't do anything it
		return;
		
	//New: if existing phone # is of 13 chars format, chg to new format w/ a space after )
	var p=m.value;
	if(p.length == 13) {
		//alert("old format " + p);
		var d5=p.indexOf(') ');
		if(d5 == -1){
			var pp = p.replace(")", ") ");
			//alert("new format " + pp);
			m.value = pp;
			setCaretPosition(m.id, 14);
		}
	}
	
}

// IE cursor jumps to begin of text so must use this fct.
function setCaretPosition(elemId, caretPos) {
    var elem = document.getElementById(elemId);

    if(elem != null) {
        if(elem.createTextRange) {
            var range = elem.createTextRange();
            range.move('character', caretPos);
            range.select();
        }
        else {
            if(elem.selectionStart) {
                elem.focus();
                elem.setSelectionRange(caretPos, caretPos);
            }
            else
                elem.focus();
        }
    }
}