var bool_name=false;
var bool_mail = false;
var bool_asunt = false;
var bool_coment=false;


function validar()
{


	if(document.getElementById("name").value=='' || document.getElementById("name").value=='Escriba un nombre')
		{
		document.getElementById("name").className = "error";
		document.getElementById("name").value= "Escriba un nombre";
		}
		else
		{
		document.getElementById("name").className = "inputNormal";
		bool_name=true;
		}
	 if(emailCorrecto()==false)
	 {
		emailCorrecto();
		document.getElementById("mailto").className = "error";
		document.getElementById("mailto").value= "Mail incorrecto";
	}
	else
	{
		document.getElementById("mailto").className = 'inputNormal';
		bool_mail=true;
	}
	
	if(document.getElementById("asunt").value==-1)
	{
	document.getElementById("asunt").className = "error";
	document.getElementById("asunt").value=-1;
	}
	else
	{
	document.getElementById("asunt").className = 'inputNormal';
	bool_asunt=true;
	}
	
	if(document.getElementById("coment").value=='' || document.getElementById("coment").value=='Debe introducir al menos 10 cáracteres' || document.getElementById("coment").value.length < 10)
	{
		document.getElementById("coment").className = "error";
		document.getElementById("coment").value= "Debe introducir al menos 10 cáracteres";
		
	}
	else
	{
		document.getElementById("coment").className = 'inputNormal';
		bool_coment=true;
		}
	if(bool_name==true && bool_mail==true && bool_asunt==true && bool_coment==true)
	{
	document.getElementById("myForm").submit();
	}
}

function emailCorrecto()
{
var filter = /^([a-zA-Z0-9_.-])+@([a-zA-Z0-9_.-])+\.([a-zA-Z])+([a-zA-Z])+/;
if (!filter.test(document.getElementById("mailto").value)) {

return false;
}
}

function comprobar()
{
	if(document.getElementById("name").value=='' || document.getElementById("name").value=='Escriba un nombre')
		{
		document.getElementById("name").className = "error";
		document.getElementById("name").value= "Escriba un nombre";
		document.getElementById("name").focus();
		return;
		}
		else
		{
		document.getElementById("name").className = "inputNormal";
		}
	 if(emailCorrecto()==false)
	 {
		emailCorrecto();
		document.getElementById("mailto").className = "error";
		document.getElementById("mailto").value= "Mail incorrecto";
		document.getElementById("mailto").focus();
		return;
	}
	else
	{
		document.getElementById("mailto").className = 'inputNormal';
		
	}
	
	if(document.getElementById("asunt").value==-1)
	{
	document.getElementById("asunt").className = "error";
	document.getElementById("asunt").value=-1;
	document.getElementById("asunt").focus();
	return;
	}
	else
	{
	document.getElementById("asunt").className = 'inputNormal';
	}
	
	if(document.getElementById("coment").value=='' || document.getElementById("coment").value=='Debe introducir al menos 10 cáracteres' || document.getElementById("coment").value.length < 10)
	{
		document.getElementById("coment").className = "error";
		document.getElementById("coment").value= "Debe introducir al menos 10 cáracteres";
		document.getElementById("coment").focus();
		return;
		
	}
	else
	{
		document.getElementById("coment").className = 'inputNormal';
	}
}


function comprobarNavegador()
{
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.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();
var nav = BrowserDetect.browser;
var ua = navigator.userAgent;
var str = ua.indexOf("MSIE");
var ie = ua.substr(str,6);
if( nav == "Firefox")
{
document.write("<link rel='stylesheet' type='text/css' href='css/style.css' />");
}
else
if(ie == "MSIE 8")
{
document.write("<link rel='stylesheet' type='text/css' href='css/explorer8.css' />");
}
else 
if(nav == "Explorer")
{
document.write("<link rel='stylesheet' type='text/css' href='css/explorer.css' />");
}
else
if(nav == "Opera")
{
document.write("<link rel='stylesheet' type='text/css' href='css/opera.css' />");
}
else
document.write("<link rel='stylesheet' type='text/css' href='css/style.css' />");
}