function formcheck(which) {
  var nombox = document.getElementById(which + '_nom');
  var nom = nombox.value;
  if ((nom == '') || (nom == 'Please enter your name.')) {
	nombox.value = 'Please enter your name.';
	nombox.select();
	return false;
  }
  nombox.value = nom.replace(/[^-A-Za-z\., ]/g, '');

  var emlbox = document.getElementById(which + '_eml');
  var eml = emlbox.value;
  if ((eml == '') || (!eml.match(/^[A-Z0-9a-z._%+-]+@[A-Z0-9a-z.-]+\.[A-Za-z]{2,4}$/))) {
	emlbox.value = 'Please enter a valid email address.';
	emlbox.select();
	return false;
  }

  var phnbox = document.getElementById(which + '_phn');
  var phn = phnbox.value;
  if (!phn.match(/[0-9]{3}[-\., ][0-9]{4}/)) {
	phnbox.value = 'Enter in format: NNN NNN-NNNN.';
	phnbox.select();
	return false;
  }
  phnbox.value = phn.replace(/[^-0-9\., ]/g, '');

  if ((document.getElementById(which + '_humn')) && (!document.getElementById(which + '_humn').checked)) {
	alert("Please check the \"I'm human!\" box.");
	return false;
  }

  if (clientSnoop(which)) {return true;}
  else {return false;}
}


function clientSnoop(from) {
  var sno = document.createElement('input');
  sno.setAttribute('type', 'hidden');
  sno.setAttribute('name', 'user_spec');
  sno.value = navigator.platform + '::' + navigator.userAgent + '::';

  if (document.getElementById(from + '_form').appendChild(sno)) {return true;}
  else {return false;}
}

/* Clipped this from Quirksmode (http://www.quirksmode.org/js/detect.html) */
var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	searchString: function (data) {
		for (var i=0;i<data.length;i++)	{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString) {
				if (dataString.indexOf(data[i].subString) != -1)
					return data[i].identity;
			}
			else if (dataProp)
				return data[i].identity;
		}
	},
	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
	},
	dataBrowser: [
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();