/* Greybox Redux
 * Required: http://jquery.com/
 * Written by: John Resig
 * Based on code by: 4mir Salihefendic (http://amix.dk)
 * License: LGPL (read more in LGPL.txt)
 */

var GB_DONE = false;
var GB_HEIGHT = 400;
var GB_WIDTH = 400;

function getPageSize() {
					var xScroll, yScroll;
					if (window.innerHeight && window.scrollMaxY) {	
						xScroll = window.innerWidth + window.scrollMaxX;
						yScroll = window.innerHeight + window.scrollMaxY;
					} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
						xScroll = document.body.scrollWidth;
						yScroll = document.body.scrollHeight;
					} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
						xScroll = document.body.offsetWidth;
						yScroll = document.body.offsetHeight;
					}
					var windowWidth, windowHeight;
					if (self.innerHeight) {	// all except Explorer
						if(document.documentElement.clientWidth){
							windowWidth = document.documentElement.clientWidth; 
						} else {
							windowWidth = self.innerWidth;
						}
						windowHeight = self.innerHeight;
					} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
						windowWidth = document.documentElement.clientWidth;
						windowHeight = document.documentElement.clientHeight;
					} else if (document.body) { // other Explorers
						windowWidth = document.body.clientWidth;
						windowHeight = document.body.clientHeight;
					}	
					// for small pages with total height less then height of the viewport
					if(yScroll < windowHeight){
						pageHeight = windowHeight;
					} else { 
						pageHeight = yScroll;
					}
					// for small pages with total width less then width of the viewport
					if(xScroll < windowWidth){	
						pageWidth = xScroll;		
					} else {
						pageWidth = windowWidth;
					}
					arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight);
					return arrayPageSize;
					//alert(arrayPageSize);
};
				
function GB_show(caption, urlimg, height, width, urlgo) {
  var arrPageSizes = getPageSize();
  GB_HEIGHT = height || 400;
  GB_WIDTH = width || 400;
  if(!GB_DONE) {
    $(document.body)
      .append("<div id='GB_overlay'></div><div id='GB_window'><div id='GB_caption'></div>"
        + "<img src='images/close.gif' alt='Close window'/></div>");
	$("#GB_overlay").css({width:arrPageSizes[0]+"px",height:arrPageSizes[1]+"px" });
    $("#GB_window img").click(GB_hide);
    $("#GB_overlay").click(GB_hide);
    $(window).resize(GB_position);
    GB_DONE = true;
  }

  $("#GB_frame").remove();
  $("#GB_window").append("<div id='GB_frame' class='GB_frame'><a href='"+urlgo+"' id='GB_frame'><img src='"+urlimg+"' border='0' class='imgshow'></a></div>");

  $("#GB_caption").html(caption);
  $("#GB_overlay").show();
  GB_position();

  if(GB_ANIMATION)
    $("#GB_window").slideDown("slow");
  else
    $("#GB_window").show();
}

function GB_hide() {
  $("#GB_window,#GB_overlay").hide();
}

function GB_position() {
  var de = document.documentElement;
  var w = self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
  $("#GB_window").css({width:GB_WIDTH+"px",height:GB_HEIGHT+"px",
    left: ((w - GB_WIDTH)/2)+"px" });
  $("#GB_frame").css("height",GB_HEIGHT - 32 +"px");
}