var version4 = (navigator.appVersion.charAt(0) == "4");
var popupHandle;
function closePopup() {
	if(popupHandle != null && !popupHandle.closed) popupHandle.close();
	}
function displayPopup(position,url,name,height,width, evnt) {
	var properties = "toolbar = No, location = No, height = " + height;
	properties = properties + ", width=" + width;
	var leftprop, topprop, screenX, screenY, cursorX, cursorY, padAmt;
	if(navigator.appName == "Microsoft Internet Explorer") {
		screenY = document.body.offsetHeight;
		screenX = window.screen.availWidth;
		}	
	else {
		screenY = window.outerHeight;
		screenX = window.outerWidth;
		}
	if(position == 1)	{ // if POPUP not CENTER
		cursorX = evnt.screenX;
		cursorY = evnt.screenY;
		padAmtX = 10;
		padAmtY = 10;
		if((cursorY + height + padAmtY) > screenY) {
			// make sizes a negative number to move left/up
			padAmtY = (-30) + (height * -1);
			// if up or to left, make 30 as padding amount
			}
			if((cursorX + width + padAmtX) > screenX)	{
			padAmtX = (-30) + (width * -1);	
			// if up or to left, make 30 as padding amount
			}
		if(navigator.appName == "Microsoft Internet Explorer") {
		leftprop = cursorX + padAmtX;
		topprop = cursorY + padAmtY;
		}
		else {
		leftprop = (cursorX - pageXOffset + padAmtX);
		topprop = (cursorY - pageYOffset + padAmtY);
		}
	}
else{
	leftvar = (screenX - width) / 2;
	rightvar = (screenY - height) / 2;
	if(navigator.appName == "Microsoft Internet Explorer") {
		leftprop = leftvar;
		topprop = rightvar;
		}
	else {
		leftprop = (leftvar - pageXOffset);
		topprop = (rightvar - pageYOffset);
		}
	}
	{
	properties = properties + ", left = " + leftprop;
	properties = properties + ", top = " + topprop;
	}
	closePopup();
	popupHandle = open(url,name,properties);
	}
	//onclick="javascript:calendar_window=window.open('cmn_calendar.aspx?formname=form1.vid_Date','calendar_window','width=190,height=220');calendar_window.focus();
//  End -->