function newWindow(str,w,h) 
{
	if ((w != 0) || (h != 0)) {
		var x = (screen.width) ? (screen.width-w)/2 : 0; 
		var y = (screen.height) ? (screen.height-h)/2 : 0; 
		newwindow=window.open(str,"","width="+w+",height="+h+",left=" + x + ",top=" + y+",resizable=no,menubar=no,scrollbars=no");
	}
	else {
		newwindow=window.open(str,"","resizable=no,menubar=no,scrollbars=no");
	}
	newwindow.focus();
}

function newWindowScroll(str,w,h) 
{
	if ((w != 0) || (h != 0)) {
		var x = (screen.width) ? (screen.width-w)/2 : 0; 
		var y = (screen.height) ? (screen.height-h)/2 : 0; 
		newwindow=window.open(str,"","width="+w+",height="+h+",left=" + x + ",top=" + y+",resizable=no,menubar=no,scrollbars=yes");
	}
	else {
		newwindow=window.open(str,"","resizable=no,menubar=no,scrollbars=no");
	}
	newwindow.focus();
}


var pageHolder = "";

function open_dialog(f,w,h) {
	pageHolder = f;
	if(document.all)
	{
		var r = window.showModalDialog('dialog_holder.php', this,'dialogWidth:'+w+'px;dialogHeight:'+h+'px;center:1;');
	}
	else
	{	
		var r = window.open('dialog_holder.php', this,'width='+w+',height='+h+',resizable=no,menubar=no,scrollbars=no');	
	}
}