/**
function setHeight(){
	var contentHeight = document.getElementById("content").offsetHeight;
	var leftBackHeight = document.getElementById("left_back").offsetHeight;
	if(contentHeight <=582 ){
		contentHeight = 582;
	}
	document.getElementById("extend").style.height=(contentHeight-leftBackHeight-40)+"px";
}

*/

function setHeight(){
	var contentHeight = document.getElementById("content").offsetHeight;
	var leftBackHeight = document.getElementById("left_back").offsetHeight;
//	alert("contentHeight "+contentHeight+" leftBackHeight "+leftBackHeight);
	//if(contentHeight <=605 ){
	if(contentHeight <= 518 ){
		//contentHeight = 605;
		contentHeight = 518;
	}
	var extendHeight = document.getElementById("extend").offsetHeight;
	document.getElementById("extend").style.height=(contentHeight-leftBackHeight+extendHeight)+"px";
//	alert("extend Height "+document.getElementById("extend").style.height);
}


function setSpryHeight(){
	var contentHeight = document.getElementById("content").offsetHeight;
	var leftBackHeight = document.getElementById("left_back").offsetHeight;
//	alert("contentHeight "+contentHeight+" leftBackHeight "+leftBackHeight);
	//if(contentHeight <=605 ){
	if(contentHeight <= 518 ){
		//contentHeight = 605;
		contentHeight = 518;
	}
	var extraHeight = leftBackHeight - document.getElementById("extend").offsetHeight;
	document.getElementById("extend").style.height=(contentHeight - extraHeight)+"px";
	//alert("extend Height "+document.getElementById("extend").style.height);
}