function setCenterHeight()
{
	var tCenter = document.getElementById("tCenter").style;
	var scrH = screen.height;
	var temp = scrH - 385;
	tCenter.height = temp + 'px';
}
function checkKeyNum()
{
	if ((event.keyCode >= 48 && event.keyCode <= 57) || event.keyCode == 46)
	{
		return true;
	}
	else
	{
		return false;
	}
}
function check(el, msg) {
	if(el.value == '')
	{
		alert(msg);
		el.focus();
		return false;
	}
	return true;
}
function openwindow(a){
	window.open(a, "open")
}