var y=0;
var x=0;
var xmlHttp;
var	contentUrl="content.aspx";

// browse-check

var browser = navigator.appName;
var os      = navigator.userAgent.search(/Windows/i)!= -1;  // true == win
if(navigator.userAgent.search(/MSIE/i)!= -1){
    browser = "ie";
}else if(navigator.userAgent.search(/firefox/i)!= -1){
    browser = "firefox";
}else{
    browser = "na";
}

function d(id) {
	document.getElementById(id).style.visibility = "hidden";
}

function v(lager) {
	document.getElementById(id).style.visibility = "visible";
}


function getsize(lager){
    if (document.all){return document.all[lager].clientHeight;}
    if(document.getElementById){return document.getElementById(lager).offsetHeight;}
    if(document.layers){return document.layers[lager].document.height;}
}

function getWidth(lager){
    if (document.all){return document.all[lager].clientWidth;}
    if(document.getElementById){return document.getElementById(lager).offsetWidth;}
    if(document.layers){return document.layers[lager].document.width;}
}

function getHeight(lager){
        if (document.all) return document.all[lager].clientHeight;
        if(document.layers) return document.layers[lager].clip.height;
        if(document.getElementById){return document.getElementById(lager).offsetHeight;}
}

function bytbild(id, bildSrc){
	document.getElementById(id).src = bildSrc;
}

function empty(obj,teststring){
	if(obj.value==teststring){
			obj.value='';
	}
}

function resetText(obj,teststring){
	if(obj.value==''){
			obj.value=teststring;
	}
}

function checkEmail(email){
	var regexpemail =/^[a-zA-Z0-9\-\.\_]+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,4}|[0-9]{1,4})(\]?)$/;
	return regexpemail.test(email);
}

var kja=false,knej=false;

function kryssja(onoff){
	if(onoff){ bytbild('kryssja','_pict/start/checkboxbig-on.gif'); }
	else if(!onoff && !kja){ bytbild('kryssja','_pict/start/checkboxbig.gif'); }
}

function kryssnej(onoff){
	if(onoff){ bytbild('kryssnej','_pict/start/checkboxbig-on.gif'); }
	else if(!onoff && !knej){ bytbild('kryssnej','_pict/start/checkboxbig.gif'); }
}