window.onload = checkAvailableWidth;
window.onresize = checkAvailableWidth;

function checkAvailableWidth(){

	if(document.body.offsetWidth > 998){

		if (document.getElementById("main")) {	document.getElementById("main").style.width = "1000px";}

		if (document.getElementById("blok1")) {	document.getElementById("blok1").style.width = "460px";}
		if (document.getElementById("blok2")) {	document.getElementById("blok2").style.width = "460px";}
		if (document.getElementById("blok3")) {	document.getElementById("blok3").style.width = "460px";}
		if (document.getElementById("blok4")) {	document.getElementById("blok4").style.width = "460px";}
		if (document.getElementById("blok5")) {	document.getElementById("blok5").style.width = "460px";}
		if (document.getElementById("blok6")) {	document.getElementById("blok6").style.width = "460px";}
		if (document.getElementById("nieuws")) {	document.getElementById("nieuws").style.width = "580px";}
		if (document.getElementById("tracker")) {	document.getElementById("tracker").style.width = "300px";}

	} else {
	
		if (document.getElementById("main")) {	document.getElementById("main").style.width = document.body.offsetWidth-17+"px";}
		if (document.getElementById("blok1")) {	document.getElementById("blok1").style.width = document.body.offsetWidth-17-40+"px";}
		if (document.getElementById("blok2")) {	document.getElementById("blok2").style.width = document.body.offsetWidth-17-40+"px";}
		if (document.getElementById("blok3")) {	document.getElementById("blok3").style.width = document.body.offsetWidth-17-40+"px";}
		if (document.getElementById("blok4")) {	document.getElementById("blok4").style.width = document.body.offsetWidth-17-40+"px";}
		if (document.getElementById("blok5")) {	document.getElementById("blok5").style.width = document.body.offsetWidth-17-40+"px";}
		if (document.getElementById("blok6")) {	document.getElementById("blok6").style.width = document.body.offsetWidth-17-40+"px";}

		if (document.getElementById("nieuws")) {	document.getElementById("nieuws").style.width = '90%';}
		if (document.getElementById("tracker")) {	document.getElementById("tracker").style.width = '90%';}

	}
}