NS4=(document.layers) ;
NS60=(navigator.userAgent.indexOf("Netscape6/6.0")!=-1);
Opera=(navigator.userAgent.indexOf('Opera')!=-1)||(navigator.appName.indexOf('Opera')!=-1)||(window.opera);
Opera7=(Opera&&document.createElement!=null&&document.addEventListener!=null);
IE4=(document.all&&!Opera) ;
mac=((IE4)&&(navigator.appVersion.indexOf ("Mac")!=-1));
DOM=document.documentElement&&!NS4&&!IE4&&!Opera;
mswnd=(navigator.appVersion.indexOf("Windows")!=-1||navigator.appVersion.indexOf("WinNT")!=-1);

if(IE4)
{
	av=navigator.appVersion;
	avi=av.indexOf("MSIE");
	if (avi==-1){version = parseInt (av);}else {version=parseInt(av.substr(avi+4));}
}

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) { //v4.0
  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 && document.getElementById) x=document.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 owind(url,name,opts,width,height) {
   var ntop, nleft;

  nleft = (screen.width) ? (screen.width-width)/2 : 0;
  ntop = (screen.height) ? (screen.height-height)/2 : 0;

  window.open(url,name,opts+',top='+ntop+',left='+nleft);
  return false;
}

function testEmail(src) {
  var regex = /^[a-zA-Z0-9._-]+@([a-zA-Z0-9.-]+\.)+[a-zA-Z0-9.-]{2,4}$/;
  return regex.test(src);
}