//BROWSER IDENT
var brs=navigator.userAgent.toLowerCase();

function heightAdjust() {
	var object = document.getElementById("main").clientHeight;
	 
	if(object < 500) {
		object = 500;
		document.getElementById("main").style.height = 480 + "px";
		if(brs.indexOf("msie 6.0") != -1) {
			document.getElementById("main").style.height = 502 + "px";			
		}
	}
	 
	document.getElementById("left_bar").style.height = object + "px";
}