function hoogte(){

	if (self.innerHeight){ // Alle browsers behalve IE
		hoogte = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight){ // IE6 Strict Mode
		hoogte = document.documentElement.clientHeight;
	} else if (document.body){ // Alle andere browsers
		hoogte = document.body.clientHeight;
	}	

	return hoogte;
}

window.onload = function init(){
	
	document.getElementById('main').style.height = hoogte() + "px";	

}

function zoekveldKleur(){
	document.getElementById('zoekveld').style.color = "#000000";
}

function hide(id) {
	document.getElementById(id).style.display = "none";
	document.getElementById(id).style.visibility = "hidden";
}
function show(id) {
	document.getElementById(id).style.display = "";
	document.getElementById(id).style.visibility = "visible";
}
function toggle(id) {
	document.getElementById(id).style.display = (document.getElementById(id).style.display != 'none' ? 'none' : '' );
	document.getElementById(id).style.visibility = (document.getElementById(id).style.display != 'hidden' ? 'hidden' : 'visible' );
}

function setTotaal(totaal,extra){
	document.getElementById('totaalBedrag').innerHTML = number_format(totaal+extra,2,',','.');
}

function number_format(number,decimals,dec_point,thousands_sep) {
	var n = number, prec = decimals;
	
	var toFixedFix = function (n,prec) {
	var k = Math.pow(10,prec);
	return (Math.round(n*k)/k).toString();
	};
	
	n = !isFinite(+n) ? 0 : +n;
	prec = !isFinite(+prec) ? 0 : Math.abs(prec);
	var sep = (typeof thousands_sep === 'undefined') ? ',' : thousands_sep;
	var dec = (typeof dec_point === 'undefined') ? '.' : dec_point;
	
	var s = (prec > 0) ? toFixedFix(n, prec) : toFixedFix(Math.round(n), prec); //fix for IE parseFloat(0.55).toFixed(0) = 0;
	
	var abs = toFixedFix(Math.abs(n), prec);
	var _, i;
	
	if (abs >= 1000) {
	_ = abs.split(/\D/);
	i = _[0].length % 3 || 3;
	
	_[0] = s.slice(0,i + (n < 0)) +
	_[0].slice(i).replace(/(\d{3})/g, sep+'$1');
	s = _.join(dec);
	} else {
	s = s.replace('.', dec);
	}
	
	var decPos = s.indexOf(dec);
	if (prec >= 1 && decPos !== -1 && (s.length-decPos-1) < prec) {
	s += new Array(prec-(s.length-decPos-1)).join(0)+'0';
	}else if (prec >= 1 && decPos === -1) {
	s += dec+new Array(prec).join(0)+'0';
	}
	
	return s;
}