function fullScreen() {
			var ie4 = document.all ? true:false;

			breedte = screen.availWidth  ;
			hoogte = screen.availHeight - 30;
			if(navigator.appVersion.indexOf("Mac") != -1) {
				hoogte -= 5;
				//alert("testje")
			}
			if(navigator.appVersion.indexOf("Mac") != -1 && ie4) {
				//alert("test2")
				if(screen.width > 1250 && screen.height < 1020) {
					hoogte +=12;
				}
				if(screen.width > 1020 && screen.height == 765) {
					hoogte +=0;
				}
			}
			
			var str = "left= 0, top= 0,width="+breedte+",height="+hoogte+",scrollbars=no";
			if (navigator.appName == 'Microsoft Internet Explorer') {
				var windowName = window.open("main.asp?taal=1","ttt",str);
			} else {
				var windowName = window.open("main.asp?taal=1","ttt",str);
			}
}

function fullwindow(){
	
	window.resizeTo(screen.width, screen.height)
	window.moveTo(0, 0)
}