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;
}

// form validation
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('Please ensure that you have completed the form correctly\n');
  document.MM_returnValue = (errors == '');
}

// opens browser window
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

// tool tips
var prevTooltip;

function getWindowWidth() {
    
    if(window.innerWidth) {
        return window.innerWidth;
    } 
    
    return document.body.clientWidth
}

function mouseX(e) {

    if(e.pageX) {
        return e.pageX;
    }
    
    return e.clientX + (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);
}

function mouseY(e) {
   
   if(e.pageY) {
        return e.pageY;
    } 
    
    return e.clientY + (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);    
}

function tooltip(e, o) {

    var windowWidth = getWindowWidth();

    o = document.getElementById(o);
    
    if(prevTooltip && prevTooltip != o) {
        prevTooltip.style.visibility = 'hidden';
    }

    if(o.style.visibility == 'visible') {

        o.style.visibility = 'hidden';
    } else {
    
        if(o.offsetWidth) {
            ew = o.offsetWidth;
        } else if(o.clip.width) {
            ew = o.clip.width;
        }
    
        y = mouseY(e) + 16;
        x = mouseX(e) - (ew / 4);
        
        if (x < 2) {
            x = 2;
        } else if(x + ew > windowWidth) {
            x = windowWidth - ew - 4;
        }
        
        o.style.left = x + 'px';
        o.style.top = y + 'px';    
        
        o.style.visibility = 'visible';
        
        prevTooltip = o;
    }
}