//Browser detection
var AgntUsr=navigator.userAgent.toLowerCase();
//alert(AgntUsr);
var DomYes=(document.getElementById)?1:0;                                                 // DOM
var NavYes=(AgntUsr.indexOf('mozilla')!=-1&&AgntUsr.indexOf('compatible')==-1)?1:0;     // Netscape
var ExpYes=(AgntUsr.indexOf('msie')!=-1)?1:0;                                             // IExplorer
var Opr=(AgntUsr.indexOf('opera')!=-1||AgntUsr.indexOf('opera')!=-1)?1:0;                 // Opera
var Opr5=(AgntUsr.indexOf('opera 5')!=-1||AgntUsr.indexOf('opera/5')!=-1)?1:0;             // Opera 5
var Opr6=(AgntUsr.indexOf('opera 6')!=-1||AgntUsr.indexOf('opera/6')!=-1)?1:0;             // Opera 6
var Opr7=(AgntUsr.indexOf('opera 7')!=-1||AgntUsr.indexOf('opera/7')!=-1)?1:0;             // Opera 7
var DomNav=(DomYes&&NavYes)?1:0;                                                         // Netscape 6 up
var Safari=(AgntUsr.indexOf('safari')!=-1)?1:0;                                         // Safari
var Exp5=(AgntUsr.indexOf('msie 5')!=-1)&&(AgntUsr.indexOf('gecko') == -1)?1:0;            // IE 5
var DomExp=(DomYes&&ExpYes)?1:0;                                                         // IExplorer 5 up
var Nav4=(NavYes&&!DomYes&&document.layers)?1:0;                                         // Netscape 4
var Exp4=(ExpYes&&!DomYes&&document.all)?1:0;                                             // IExplorer 4
var PosStrt=((NavYes||ExpYes)&&!Opr5)?1:0;                                                 // Can start
var OS="";    

var detect = navigator.userAgent.toLowerCase();
function checkIt(string) {
    place = detect.indexOf(string) + 1;
    thestring = string;
    return place;
}

if (checkIt('linux')) OS = "Windows";
else if (checkIt('x11')) OS = "Windows";
else if (checkIt('mac')) OS = "Mac";
else if (checkIt('win')) OS = "Windows";
else OS = "an unknown operating system";

function writeDiv(div, html) {
    var evaldiv;
    if (DomExp) {
        evaldiv = eval(div);
        evaldiv.innerHTML = html;
    }
    else if (DomNav) 
        (document.getElementById(div)).innerHTML = html;
}

function validateString(what) {
    //check if string empty
    if (what != "")
        return false;
    else
        return true;
}
function compareString(what1, what2) {
    //compare 2 strings
    if (what1 == what2)
        return false;
    else
        return true;
}
function stringLength(tString, tLength1, tLength2) {
    //check if string length is in range
    if ((tString.length >= tLength1) && (tString.length <= tLength2))
        return false;
    else
        return true;
}
function validateEmail(what) {
    var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
    if (filter.test(what)) 
        return false;
    else 
        return true;
}

function popUp(url, name, width, height)
{    
    if(name == "") name = "myPopUpWindow";
    if(width == 0 || width == "") width = 300;
    if(height == 0 || width == "") height = 300;
    if(url != "") window.open(url, name,"width="+width+",height="+height+",resizable=no,menubar=no,locationbar=no,scrollbars=yes,status=no");
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function popUpPrint(url, name, width, height)
{ 
 if(name == "") name = "myPopUpWindow";
 if(width == 0 || width == "") width = 300;
 if(height == 0 || width == "") height = 300;
 window.open(url, name,"width="+width+",height="+height+",resizable=no,menubar=no,locationbar=no,toolbar=no,scrollbars=yes,status=no");
}
function printDiv() {
 popUpPrint('print.html', 'print', 525, 600);
}