function leave() {
    if ( window.navigator.userAgent.indexOf("MSIE") > 0 ) {
        if (screenTop > 9999) {
            window.open('popup.php','','toolbar=no, menubar=no, location=no,height=450,width=400');
        }
    }
}

function sendNewsletter() {
    val = document.newsletter.email.value;
    
    if ( val == '' || val == 'Enter your email here' ) {
        alert('Please enter your email address.');
        document.newsletter.email.focus();
        return false;
    } else if ( !(/^\w+[-_\.]*\w+@\w+-?\w+\.[a-z]{2,4}$/.test(val)) ) {
        alert('Please enter valid email address.');
        document.newsletter.email.focus();
        return false;
    }
    
    return true;
}

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_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
  } if (errors) alert('The following error(s) occurred:\n'+errors);
  document.MM_returnValue = (errors == '');
}

var cur_state;
function show_state(state, x, y, direction) {
    obj = document.getElementById(state);
    if (obj != null) {
        if (direction == 'l') {
            if ( window.navigator.userAgent.indexOf ("MSIE") > 0 ) {
                obj.style.left = (x - obj.offsetWidth + 196) + "px";
            } else {
                obj.style.left = (x - obj.offsetWidth - 10) + "px";
            }
            obj.style.top = (y - obj.offsetHeight) + "px";
        } else {
            obj.style.left = x + "px";
            obj.style.top = (y - obj.offsetHeight) + "px";
        }
        obj.style.visibility = "visible";
        if (cur_state != state) {
            hide_state(cur_state);
            cur_state = state;
        }
    }
}
function hide_state(state) {
    obj = document.getElementById(state);
    if (obj != null) {
        obj.style.visibility = "hidden";
    }
}