// JavaScript Document

var photo_visible = false;

function show_image(pic){
	var x_offset=(dd.getWndW()/2)-(550/2);
	var y_scroll=dd.getScrollY();
	var window_w=dd.getWndW();
	var window_h=getDocHeight();
	
	dd.elements.divbg.resizeTo(window_w,window_h);
	dd.elements.divbg.moveTo(0,0);
	dd.elements.divbg.show();
	
	dd.elements.divPhoto.write('<img src="'+pic+'" onclick="hide_image()" style="border:1px #999 solid; background-color:#fff; padding: 10px">');
	dd.elements.divPhoto.moveTo(x_offset,y_scroll+20);
	dd.elements.divPhoto.maximizeZ();
	dd.elements.divPhoto.show();
	
	photo_visible = true;
}

function hide_image(){
	//var y_scroll=dd.getScrollY();
	dd.elements.divPhoto.hide();
	dd.elements.divPhoto.write('&nbsp;');
	dd.elements.divbg.hide();
	photo_visible = false;
}

function getDocHeight() {
    var D = document;
    return Math.max(
        Math.max(D.body.scrollHeight, D.documentElement.scrollHeight),
        Math.max(D.body.offsetHeight, D.documentElement.offsetHeight),
        Math.max(D.body.clientHeight, D.documentElement.clientHeight)
    );
	
}