// ------------------------------------------------------------------------------------------------------- //
//  Force getElementById to work (for IE)
// ------------------------------------------------------------------------------------------------------- //
if(!document.getElementById) {
	if(document.all) {
		document.getElementById= function() {
			if(typeof document.all[arguments[0]]!="undefined") {
				return document.all[arguments[0]];
			} else {
				return null;
			}
		}
	} else if(document.layers) {
		document.getElementById = function() {
			if(typeof document[arguments[0]]!="undefined") {
				return document[arguments[0]];
			} else {
				return null;
			}
		}
	}
}



// ------------------------------------------------------------------------------------------------------- //
// BROWSER DETECTION
// 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();
var browser = BrowserDetect.browser;
var version = BrowserDetect.version;


if(BrowserDetect.browser == "Explorer") {
	var version = parseInt(BrowserDetect.version);
	if(version < 7) {
//		alert("MSIE " + version);
//		window.location = _URL = "ie_6.php";
	}
}


// ------------------------------------------------------------------------------------------------------- //
// TOGGLE LAYERS
// ------------------------------------------------------------------------------------------------------- //
var layer_old;
var layer_new;
function toggle_layer(layer_new) {
	layer_old = (layer_old == null) ? "tab_1" : layer_old;
	
	document.getElementById( layer_old+"_tab" ).className = "tab";
	document.getElementById( layer_new+"_tab" ).className = "tab_on";
	
	
	new Effect.Fade(layer_old, { 
			duration: .5,
			from: 1,
			to: 0.0
		});
	
	new Effect.Appear(layer_new, {
			delay:1,
			duration:.5,
			from:0.0,
			to:1
		});
		
	layer_old = layer_new;
}

// Toggle "read more" in testimonials
function toggle_more(obj_id){

	if( el = document.getElementById( obj_id ) ) {
		if( el.className != "more_visible" ){
			el.className = "more_visible";
			document.getElementById( obj_id + "_anchor").className = "more_hidden";
		}
	
	}else{
		alert("Invalid element name: " + obj_id );
	}
	return false;
}

function verifyRequired() {
	if (document.icpsignup["fields_email"].value == "") {
		document.icpsignup["fields_email"].focus();
		alert("The Email field is required.");
		return false;
	}
	
	return true;
}