function popUp(URL) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0, scrollbars=1, location=0, statusbar=0, menubar=0,resizable=1, width=450, height=300, left = 400, top = 15 0');");
}

function popPencere(URL, myWidth, myHeight, myLeft, myTop)
{
	day = new Date();
	id = day.getTime();

	if (myWidth == 0) myWidth = 450;
	if (myHeight == 0) myHeight = 300;

	var winLeft = (screen.width-myWidth)/2;
	var winTop = (screen.height-myHeight)/2;
	if (myLeft == 0) myLeft = winLeft;
	if (myTop == 0) myTop = winTop;
	
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0, scrollbars=1, location=0, statusbar=0, menubar=0,resizable=1, width=" + myWidth + ", height=" + myHeight + ", left = " + myLeft + ", top = " + myTop + "');");
}

var xmlHttp;

function GetXmlHttpObject()
{ 
	var objXMLHttp = null;
	if (window.XMLHttpRequest)
	{
		objXMLHttp = new XMLHttpRequest()
	}
	else if (window.ActiveXObject)
	{
		objXMLHttp = new ActiveXObject("Microsoft.XMLHTTP")
	}
	return objXMLHttp;
}