var Mac = navigator.appVersion.indexOf('Mac',0) != -1;
var Win = navigator.appVersion.indexOf('Win',0) != -1;
var IE  = navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1;
var NN  = navigator.appName.indexOf("Netscape",0) != -1;
var Moz = navigator.userAgent.indexOf("Gecko") != -1;
var Vmajor = parseInt(navigator.appVersion);	// ex. 3
var Vminor = parseFloat(navigator.appVersion);	// ex. 3.01

var MacIE4 = ((Mac && navigator.appVersion.indexOf('MSIE 4.',0) != -1));
var MacIE3 = ((Mac && navigator.appVersion.indexOf('MSIE 3.',0) != -1));

////////////////////////
// window scroll prog.
////////////////////////

function getScrollLeft(){

	if((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)){
		return document.body.scrollLeft;
	}
	else if(window.pageXOffset){
		return window.pageXOffset;
	}
	else{
		return 0;
	}

}


function getScrollTop(){

	if((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)){
		return document.body.scrollTop;
	}
	else if(window.pageYOffset){
		return window.pageYOffset;
	}
	else {
		return 0;
	}

}


function getScrollWidth(){

	if((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)){
		return document.body.scrollWidth;
	}else if(window.innerWidth){
		return window.innerWidth;
	}

	return 0;

}


function getScrollHeight(){

	if((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)){
		return document.body.scrollHeight;
	}
	else if(window.innerHeight) {
		return window.innerHeight;
	}

	return 0;

}