function ResizeFixWidth()
{
	if(document.body.clientWidth >=1260)
		document.getElementById('maintable').style.width='1260px';
	else if(document.getElementById('maintable').style.width!='100%')
		document.getElementById('maintable').style.width='100%';
}

window.onresize=ResizeFixWidth;
window.onload=ResizeFixWidth;