function CheckBrowser() {
var browser		= navigator.appName
var ver			= navigator.appVersion
var thestart	= parseFloat(ver.indexOf("MSIE"))+1 //This finds the start of the MS version string.
var brow_ver	= parseFloat(ver.substring(thestart+4,thestart+7)) //This cuts out the bit of string we need.

function ValidateForm() {
  if (document.getElementById){
    var i,p,q,nm,test,num,min,max,errors='',args=ValidateForm.arguments;
    for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=document.getElementById(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+''; }
    } if (errors) alert('Values are required for both\nFlow Rate and Operating Pressure');
    document.ReturnValue = (errors == '');
}
}

if ((browser=="Microsoft Internet Explorer") && (brow_ver < 6))
	{ 
onClick=ValidateForm('flowrate','','RisNum','pressure','','RisNum');
return false;
	}
((browser=="Microsoft Internet Explorer") && (brow_ver > 5.5))
	{ 
return true;
}
}