//page global variables
var window_width, window_height;


//function to get page dimensions
function getPageDimensions() {
	window_width = (document.all) ? document.body.clientWidth : window.innerWidth;
	window_height = (document.all) ? document.body.clientHeight : window.innerHeight;
	//window.alert(window_width + ' * ' + window_height);
}

//page reload function
function initReload() {
	window.location.reload();
}


//function get xy (returns string for pop up properties
function getWinXY (win_width,win_height) {
	
		var screen_width = screen.availWidth;
		var screen_height = screen.availHeight;
		
		var xpos = Math.round(((screen_width - win_width)/2));
		var ypos = Math.round(((screen_height - win_height)/2));	

		if (document.layers) return ",screenX=" + xpos + ",screenY=" + ypos;
		else return ",left=" + xpos + ",top=" + ypos;
		
}