function fullScreen(arg) {
	//alert( arg )
	var ie4 = document.all ? true:false;
			breedte = screen.availWidth - 10 ;
			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') {
				if(arg == "banner"){
					var fullscreen = window.open("../start.asp?startup=3,14,0,-1","FIT",str);
				}else{
					var fullscreen = window.open("../start.asp?startup=1,0,-1,-1","FIT",str);
				}
			} else {
				if(arg == "banner"){
					var fullscreen = window.open("../start.asp?startup=3,14,0,-1","FIT",str);
				}else{
					var fullscreen = window.open("../start.asp?startup=1,0,-1,-1","FIT",str);
				}
			}
}