function getMetaKeywords()
{
	var ret = "";
	var elems = document.getElementsByTagName("meta");
	for(ctr = 0; ctr < elems.length; ctr ++)
	{
		if (elems[ctr].name == "keywords")
		{
			var ret = elems[ctr].content;	
		}
	}
	return ret;
}
function changeTradeArea(num)
{
	var elem = document.getElementById("rgch" + num);
	var val = elem.options[elem.selectedIndex].value;
	url = "index.php?rgch=" + val;
	//alert(url);
	window.open(url, "_top");
}
function toggleBox(box)
{
	var dv = document.getElementById(box);
	var dvtag = document.getElementById(box + "_tag");
	
	if (dv.style.overflow == "hidden" || dv.style.overflow == "")
	{
		dv.style.overflow = "visible";
		dv.style.height = "auto";
		dvtag.innerHTML = "less...";
	}
	else
	{
		dv.style.overflow = "hidden";
		dv.style.height = "70px";
		dvtag.innerHTML = "more...";
	}
}