function setpartssize(os) {
	var ua = navigator.userAgent; 
	var nHit = ua.indexOf("MSIE");
	var bIE = (nHit >=  0); 
	var window_w = 0;
	var window_h = 0;
	if (bIE) {
		if (ua.substr(nHit+5, 1) >= "6") {
			window_w = document.documentElement.clientWidth;
			window_h = document.documentElement.clientHeight;
		} else {
			window_w = document.body.clientWidth;
			window_h = document.body.clientHeight;
		}
	} else {
		window_w = window.innerWidth;
		window_h = window.innerHeight;
	}
	var targetDiv = document.getElementById("header");
	targetDiv.style.width = (window_w - 150)+"px";
	var targetDiv = document.getElementById("sidemenu");
	targetDiv.style.height = (window_h - 200)+"px";
	var targetDiv = document.getElementById("main_contents");
	targetDiv.style.height = "auto";
	var ret = Element.getDimensions("main_contents");
	if (ret.height > (window_h - (140+os))) {
		targetDiv.style.height = (window_h - (140+os))+"px";
	}
}
window.onload = function() {
	setpartssize(0);
}
window.onresize = function() {
	setpartssize();
}

function changemainpadding() {
	var targetDiv = document.getElementById("main_contents");
	targetDiv.style.padding = "50px 30px 0px 20px";
}