function getObject(objectId) {
    if(document.getElementById && document.getElementById(objectId)) {
	// W3C DOM
	return document.getElementById(objectId);
    } else if (document.all && document.all(objectId)) {
	// MSIE 4 DOM
	return document.all(objectId);
    } else if (document.layers && document.layers[objectId]) {
	// NN 4 DOM.. note: this won't find nested layers
	return document.layers[objectId];
    } else {
	return false;
    }
}

function onloading()
{
	var bodywidth=window.screen.availWidth;
	var bodyheight=window.screen.availHeight -130;
	var bodys=document.body.scrollTop;
	//alert("bodywidth:"+bodywidth+", bodyheight:"+bodyheight+" ,bodys:+"bodys);
	getObject('layer1').style.top = (bodyheight -200)/2 + bodys + 'px';//300
	getObject('layer1').style.left=(bodywidth -400)/2 + 'px';//500
	//alert(getObject('layer1').style.left);
	//alert(getObject('layer1').style.top);
	document.getElementById('layer1').style.display="block";
	//document.getElementById('conten').style.display="none";
}

function lodingClose(idName)
{
	document.getElementById(idName).style.display="none";
	return false;
}






function hide_show()
{
	var bodywidth=window.screen.availWidth;
	var bodyheight=window.screen.availHeight -130;
	var bodys=document.body.scrollTop;
	getObject('Layer1').style.top= (bodyheight -300)/2 + bodys + 'px';
	getObject('Layer1').style.left=(bodywidth -500)/2 + 'px';
    getObject('Layer1').style.display="";
}