// browser detection
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();

function showEmpPic(id)
{
	var image = document.getElementById("emp" + id)
	if(image){
		image.style.opacity = 1;
		image.style.mozOpacity = 1;
		image.style.filter = "alpha(opacity=100)";
	}
}

function coverEmpPic(id)
{	
	var image = document.getElementById("emp" + id)
	if(image){
		image.style.opacity = 0;
		image.style.mozOpacity = 0;
		image.style.filter = "alpha(opacity=0)";
	}
}

function opacity(id, opacStart, opacEnd, millisec) {
    //speed for each frame
    var speed = Math.round(millisec / 100);
    var timer = 0;

    //determine the direction for the blending, if start and end are the same nothing happens
    if(opacStart > opacEnd) {
        for(i = opacStart; i >= opacEnd; i--) {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    } else if(opacStart < opacEnd) {
        for(i = opacStart; i <= opacEnd; i++)
            {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    }
}

//change the opacity for different browsers
function changeOpac(opacity, id) 
{
    var object = document.getElementById(id).style;
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
} 


function validate(form,findclass)
{
	var tag=document.body.getElementsByTagName('*');
	var errormsg = document.getElementById('errormsg')
	var txt = ''
	var errorString = "";
	var id = "";
	for(var i=0; i<tag.length; i++) {
		
		switch(tag[i].className){
			
			case "req text":
				errorString += validateInput(tag[i],form[tag[i].id + "_err"].value);
				break;
			case "req select":
				errorString += validateInput(tag[i],form[tag[i].id + "_err"].value);
				break;
			case "req check":
				errorString += validateCheck(tag[i],form[tag[i].id + "_err"].value);
				break;
			case "req checkgroup":
				if(id != tag[i].id){
					id = tag[i].id;
					errorString += validateCheckGroup(form[id],form[tag[i].id + "_err"].value);
				}
				break;
			case "req date":
				errorString += validateDate(tag[i],form[tag[i].id + "_err"].value);
				break;
			case "req email":
				//errorString += validateEmail(tag[i],'email');
				break;
			case "req phone":
				errorString += validatePhone(tag[i],form[tag[i].id + "_err"].value);
				break;
			case "req soc":
				errorString += validateSocial(tag[i],form[tag[i].id + "_err"].value);
				break;
			case "req zip":
				errorString += validateZip(tag[i],form[tag[i].id + "_err"].value);
				break;
			case "":
				break;
			
		}
		
	}
	if(errorString!=""){
		alert(errorString);
		return false;
	}
	return true;
	//sendForm()
}

function addToFavorites(){ 
	var url = "http://www.vinegartips.com";
	var title = "Vinegar Tips";
	
	try{
		window.external.AddFavorite(url,title);
	}catch(err){
		try{
			window.sidebar.addPanel(title, url,"");
		}catch(ex){
			alert("press ctrl + D to bookmark");
		}
	}
	
}