var wonname,heightscroll;
wonname="";
function toggle(div_id) {
	var el = document.getElementById(div_id);
	if ( el.style.display == 'none' ) {	el.style.display = 'block';wonname = div_id; }
	else {el.style.display = 'none';wonname = "";}
}
function blanket_size(popUpDivVar) {
	if (typeof window.innerWidth != 'undefined') {
		viewportheight = window.innerHeight;
	} else {
		viewportheight = document.documentElement.clientHeight;
	}
	if ((viewportheight > document.body.parentNode.scrollHeight) && (viewportheight > document.body.parentNode.clientHeight)) {
		blanket_height = viewportheight;
	} else {
		if (document.body.parentNode.clientHeight > document.body.parentNode.scrollHeight) {
			blanket_height = document.body.parentNode.clientHeight;
		} else {
			blanket_height = document.body.parentNode.scrollHeight;
		}
	}
	heightscroll=document.body.parentNode.scrollHeight;
	var blanket = document.getElementById('blanket');
	blanket.style.height = blanket_height + 'px';
	var popUpDiv = document.getElementById(popUpDivVar);
	popUpDiv_height=150;//150 is half popup's height
	popUpDiv.style.top = (document.documentElement.scrollTop+20) + 'px';
}
function getMouse() {
	if(wonname!="") {
	   if(document.documentElement.scrollTop<(heightscroll-600))
		 document.getElementById(wonname).style.top = (document.documentElement.scrollTop) + 'px';
	} 
}
document.onmousemove=getMouse
document.onmouseover=getMouse
document.onmousedown=getMouse
document.onmouseup=getMouse
function window_pos(popUpDivVar) {
	if (typeof window.innerWidth != 'undefined') {
		viewportwidth = window.innerHeight;
	} else {
		viewportwidth = document.documentElement.clientHeight;
	}
	if ((viewportwidth > document.body.parentNode.scrollWidth) && (viewportwidth > document.body.parentNode.clientWidth)) {
		window_width = viewportwidth;
	} else {
		if (document.body.parentNode.clientWidth > document.body.parentNode.scrollWidth) {
			window_width = document.body.parentNode.clientWidth;
		} else {
			window_width = document.body.parentNode.scrollWidth;
		}
	}
	var popUpDiv = document.getElementById(popUpDivVar);
	window_width=window_width/2-325;//150 is half popup's width
	popUpDiv.style.left = window_width + 'px';
}
function onMinimize(){
  window.nativeWindow.minimize();
}
function popup(windowname) {
	document.getElementById("popUpDiv").style.zIndex=9999;
	blanket_size(windowname);
	window_pos(windowname);
	toggle('blanket');
	toggle(windowname);			
}