    <!-- Toggle div javascript --> 
   function toggle(div_id){
        var el = document.getElementById(div_id);
        if (el.style.display == 'none') {
            el.style.display = 'block';
        }
        else {
            el.style.display = 'none';
        }
    }
    
    function blanket_size(popUpDivVar,top){
        if (typeof window.innerWidth != 'undefined') {
            viewportheight = window.innerHeight;
        }
        else {
            viewportheight = document.documentElement.clientHeight;
        }
        if ((viewportheight > document.body.parentNode.scrollHeight) && (viewportheight > document.body.parentNode.clientHeight)) {
            blanket_height = viewportheight;
        }
        else {
            if (document.body.parentNode.clientHeight > document.body.parentNode.scrollHeight) {
                blanket_height = document.body.parentNode.clientHeight;
            }
            else {
                blanket_height = document.body.parentNode.scrollHeight;
            }
        }
        var blanket = document.getElementById('blanket');
        blanket.style.height = blanket_height + 'px';
        var popUpDiv = document.getElementById(popUpDivVar);
        popUpDiv_height = blanket_height / 2 - 150;//150 is half popup's height
       	popUpDiv.style.top = top + 'px';
		
    }
    
    function window_pos(popUpDivVar,left){
        if (typeof window.innerWidth != 'undefined') {
            viewportwidth = window.innerHeight;
        }
        else {
            viewportwidth = document.documentElement.clientHeight;
        }
        if ((viewportwidth > document.body.parentNode.scrollWidth) && (viewportwidth > document.body.parentNode.clientWidth)) {
            window_width = viewportwidth;
        }
        else {
            if (document.body.parentNode.clientWidth > document.body.parentNode.scrollWidth) {
                window_width = document.body.parentNode.clientWidth;
            }
            else {
                window_width = document.body.parentNode.scrollWidth;
            }
        }
        var popUpDiv = document.getElementById(popUpDivVar);
		window_width = window_width / 2 - 150;//150 is half popup's width
		popUpDiv.style.left = left + 'px';
		
    }
    
    function popup(windowname,top,left){
		blanket_size(windowname,top);
        window_pos(windowname,left);
        toggle('blanket');
        toggle(windowname);
    }
 <!-- Phone format javascript --> 
  <!-- 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 -->
    
    var zChar = new Array(' ', '(', ')', '-', '.');
    var maxphonelength = 13;
    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
    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+")";
	pp=pp+"-";
    }
    object.value = pp;
    } else if(p.length>3 && p.length < 7){
    //p ="(" + p;
	
	l30=p.length;
    //p30=p.substring(0,4);
	p30=p.substring(0,3);
    //p30=p30+")"
    p30=p30+"-"
	
    //p31=p.substring(4,l30);
	p31=p.substring(3,l30);
    pp=p30+p31;
    
    object.value = pp;
    
    } else if(p.length >= 7){
    //p ="(" + p;
	
    l30=p.length;
    //p30=p.substring(0,4);
	p30=p.substring(0,3);
    //p30=p30+")"
	 p30=p30+"-"
    
    //p31=p.substring(4,l30);
	p31=p.substring(3,l30);
    pp=p30+p31;
    
    l40 = pp.length;
    //p40 = pp.substring(0,8);
	p40 = pp.substring(0,7);
    p40 = p40 + "-"
    
    //p41 = pp.substring(8,l40);
	p41 = pp.substring(7,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 <= 5) {
    cursorposition = cursorposition + 2
    } else if (cursorposition == 6) {
    cursorposition = cursorposition + 2
    } else if (cursorposition == 7) {
    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 < 11) {
    cursorposition = cursorposition + 3
    } else if (cursorposition == 11) {
    cursorposition = cursorposition + 1
    } else if (cursorposition >= 12) {
    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;
    }