var win;

var bisOpera=isOpera();
function isOpera()
{
	return navigator.appName.indexOf("Microsoft") != -1 &&  navigator.userAgent.toLowerCase().indexOf("opera")!=-1;


}
function OpenWindow(url,scrol,w,h){
	posLeft = ( screen.width / 2) - ( w / 2 );
	posTop = ( screen.height / 2 ) -  ( h / 2 );
	windowprops = "top=" + posTop + ",left=" + posLeft+",width=" + w + ",height=" + h + ",scrollbars=" + scrol;
	if(bisOpera){
			
		win = window.open("", "popupPage", windowprops);
 		win.location = url;

	}
	else
	{
			
		win = window.open(url, "popupPage", windowprops);
	 }
	
	win.focus();
	return false;
	

}