var browser=navigator.appName;
var b_version=navigator.appVersion;
var version=parseFloat(b_version);
		
function showModal(){
		var flash = document.getElementsByTagName('object');
		for(var i =0;i<flash.length;i++){
			flash[i].style.display = 'none';
		}
		if (browser=="Microsoft Internet Explorer"){
			var sels  = document.getElementsByTagName('select');
			for(var i =0;i<sels.length;i++){
				sels[i].style.display = 'none';
			}
		}
		document.getElementById("total").style.height = (document.getElementById('col-esquerda').offsetHeight + 200) +'px';
		document.getElementById('modal').style.display = 'block';
		if (browser=="Microsoft Internet Explorer"){
			var lefts = document.body.clientWidth/2 - document.getElementById('modal').offsetWidth/2;
		}else{
			var lefts = window.innerWidth/2 - document.getElementById('modal').offsetWidth/2;
		}
		lefts+='px';
		document.getElementById('modal').style.left = lefts;
		
		if (browser=="Microsoft Internet Explorer"){
			var top = document.body.clientHeight/2;
		}else{
			var top = window.innerHeight/2 - document.getElementById('modal').offsetHeight/2;
		}
		top += 'px';
		document.getElementById('modal').style.top = top;
		document.onkeydown = function(e){
			if (e == null) { // ie
			keycode = event.keyCode;
			} else { // mozilla
			keycode = e.which;
			}
			if(keycode == 27){ // escape, close box
			hideModal();
			} 
		}
	}
	
	function hideModal(){
		document.getElementById('modal').style.display ='none';
		document.getElementById('total').style.display ='none';
		var flash = document.body.getElementsByTagName('object');
		for(var i =0;i<flash.length;i++){
			flash[i].style.display = 'inline';
		}
		if (browser=="Microsoft Internet Explorer"){
			var sels  = document.getElementsByTagName('select');
			for(var i =0;i<sels.length;i++){
				sels[i].style.display = 'inline';
			}
		}
	}
	showModal();