var iCaretPos =  0;
var ie = false;
var oSel = null;

$(document).ready(function() {
	$('#imessage').designMode();
	document.getElementById('imessage').contentWindow.focus();
});
function setText(what, smiley)
{
	document.getElementById('imessage').contentWindow.focus();
	if(what == "bold")
		$('#imessage').execCommand("bold", false, null);
	else if(what == "italic")
		$('#imessage').execCommand("italic", false, null);
	else if(what == "underline")
		$('#imessage').execCommand("underline", false, null);
	else if(what == "smiley")
	{
		$('#smileyBox').toggle();
		smileyDiv = '<img src="'+imgUrl+'images/trans.png" class="smiley '+smiley+'" contenteditable="false" />';
		if(ie)
		{
			var oRng = $('#imessage').contentDocument().selection.createRange();
			oRng.collapse(false);
			oRng.moveStart('character', iCaretPos);
			oRng.select();
			oRng.pasteHTML(smileyDiv);
		}
		else
		{
			$('#imessage').execCommand('inserthtml', smileyDiv);
		}
	}
} 

function saveMessage()
{
	var error = false;
	var message = $('#imessage').contentDocument().body.innerHTML;
	$('#message').val(message);
	var nameValue = document.forms["gbForm"].elements["name"].value;
	var emailValue = document.forms["gbForm"].elements["email"].value;
	var captchaValue = document.forms["gbForm"].elements["captcha"].value;
	var errorMessage = "";
	if(nameValue.length < 1)
	{
		error = true;
		errorMessage += "Geen naam ingevoerd<br />";
	}
	if(emailValue.length < 7)
	{
		error = true;
		errorMessage += "Geen of te kort e-mail adres ingevoerd<br />";
	}
	else if(!emailValidation(emailValue))
	{
		error = true;
		errorMessage += "Ongeldig e-mail adres ingevoerd<br />";
	}
	if(captchaValue.length < 6 || captchaValue.length > 6)
	{
		error = true;
		errorMessage += "Controle incorrect!<br />";
	}
	if(message.length < 5)
	{
		error = true;
		errorMessage += "Geen bericht ingevoerd";
	}
	if(error)
	{
		$('#error-message').html(errorMessage);
		return false;
	}
	else
		return true;
}

function emailValidation(value)
{
	var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	if(reg.test(value) == false)
		return false;
	else
		return true;
}
function showSmileys()
{
	getCaretPosition();
	$('#smileyBox').toggle();
	document.getElementById('imessage').contentWindow.focus();
}
function getCaretPosition()
{
	if(BrowserDetect.browser == "Safari" || BrowserDetect.browser == "Opera")
	{
		ie = false;
	}
	else if($('#imessage').contentDocument().selection)
	{
		document.getElementById('imessage').contentWindow.focus();
		oSel = $('#imessage').contentDocument().selection.createRange();
		oSel.moveStart('character', -$('#imessage').contentDocument().body.innerHTML.length);
		iCaretPos = oSel.text.length;
		ie = true;
	}
	else
	{
		oSel = document.getElementById('imessage').contentWindow.getSelection().getRangeAt(0);
		iCaretPos = oSel.endOffset;
		ie = false;
	}
}

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: "Chrome",
			identity: "Chrome"
		},
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari",
			versionSearch: "Version"
		},
		{
			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.userAgent,
			   subString: "iPhone",
			   identity: "iPhone/iPod"
	    },
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();