//-------------调整iframe的height,以适应iframe内嵌页的body高度----------------------
function getFrmHeight()
{
	
	leftframe.document.onreadystatechange = ex;
	rightframe.document.onreadystatechange = ex;

}

var leftBH = 0;		//左iframe的body高度.
var rightBH = 0;	//右iframe的body高度.
var frmBH = 0;		//左右iframe的显示高度.

function ex(){		//检测文档是否下载完毕.

	if(leftframe.document.readyState=="complete" && rightframe.document.readyState=="complete")
	{
		
		leftSH = leftframe.document.body.scrollHeight;
		rightSH = rightframe.document.body.scrollHeight;
		
		if(leftSH < rightSH)
		{
			frmBH = rightSH;
		}
		else
		{
			frmBH = leftSH;
		}
		document.all.leftframe.style.height = frmBH;
		document.all.rightframe.style.height = frmBH;

		//alert(document.all.rightframe.style.height);

	}

}

//-------------调整iframe的height,以适应iframe内嵌页的body高度-----------------------