var agt=navigator.userAgent.toLowerCase();
var is_safari = (agt.indexOf("safari")!=-1);
var is_major = parseInt(navigator.appVersion);
var is_minor = parseFloat(navigator.appVersion);
var is_DOM   = (document.getElementById) ? true : false;
var is_nav = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
            && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
            && (agt.indexOf('webtv')==-1));
var is_nav4 = (is_nav && (is_major == 4));
var is_nav4up = (is_nav && (is_major >= 4));
var is_ie = (agt.indexOf("msie") != -1);
var is_ie4up  = (is_ie  && (is_major >= 4));
var ver4 = (is_ie4up || is_nav4up) ? 1 : 0;

function getDocumentDimension() {
	var d = new Array(0, 0);
	if (window.innerHeight && window.scrollMaxY) {	
		d[0] = document.body.scrollWidth;
		d[1] = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ 
		// mozilla
		d[0] = document.body.scrollWidth;
		d[1] = document.body.scrollHeight;
	} else { 
		// ie
		d[0] = document.body.offsetWidth;
		d[1] = document.body.offsetHeight;
	}
	return d;
}

function centralize() {
	offsetLeft = Math.floor((screen.width-900)/2)
	document.writeln('<style type="text/css">');
	document.writeln('<!--');
	document.writeln('		#container {');
	document.writeln('			padding-left: '+offsetLeft+';');
	document.writeln('			padding-top: 10;');
	document.writeln('		}');
	document.writeln('		-->');
	document.writeln('		</style>');
}

function getPixel(v) {
	var p = 0;
	if (v.length > 2) {
		alert("v.substring(v.length-2, v.length): "+v.substring(v.length-2, v.length));
		if (v.substring(v.length-2, v.length) == "px") {
			alert("v.substring(0, v.length-2) : "+v.substring(0, v.length-2));
			p = parseInt(v.substring(0, v.length-2));
		} else if (!isNaN(v)) p = parseInt(v);
	} else if (!isNaN(v)) p = parseInt(v);
	return p;
}

var offsetLeft = 0;
centralize();