function document_innerWidth(){
	if (bz_is_ie6){
		iw = screen.width;
	}else{
		iw = document.body.clientWidth;
	}
	return iw;
}
function document_innerHeight(){
	if (bz_is_ie6){
		ih = screen.height;
	}else{
		ih = document.body.clientHeight;
	}
	return ih;
}
function scroll_document_get(direction){
	var x = 0;
	var y = 0;
	if(typeof window.pageYOffset != 'undefined'){
		x = window.pageXOffset;
		y = window.pageYOffset;
	}else if(typeof document.documentElement.scrollTop != 'undefined'){
		x = document.documentElement.scrollLeft;
		y = document.documentElement.scrollTop;
	}else if(typeof document.body.scrollTop != 'undefined'){
		x = document.body.scrollLeft;
		y = document.body.scrollTop;
	}

	if (direction=="y"){
		return y;
	}else{
		return x;
	}

}