<!-- author shree youngminds.com.np -->
// this function puts the dark screen over the entire page
function DarkenPage()
{
    var page_screen = document.getElementById('page_screen');
    page_screen.style.height = document.body.parentNode.scrollHeight + 'px';
    page_screen.style.width = document.body.parentNode.scrollWidth + 'px';
    page_screen.style.display = 'block';
}

// this function removes the dark screen and the page is light again
function LightenPage()
{
    var page_screen = document.getElementById('page_screen');
    page_screen.style.display = 'none';
}


function close_div(div_id)
{
	 var login_panel = document.getElementById(div_id);
    login_panel.style.display = 'none';
	
    // lighten the page again
    LightenPage();
	}
function ShowPopuDiv(div_id)
{
   
    // w is a width of the newsletter panel
    w = 400;
    // h is a height of the newsletter panel
    h = 100;
    
    // get the x and y coordinates to center the newsletter panel
    xc = Math.round((document.body.clientWidth/2)-(w/2))
    yc = 200;
    
    // show the newsletter panel
     document.getElementById(div_id).style.left = xc + "px";
   	 document.getElementById(div_id).style.top  = yc + "px";
     document.getElementById(div_id).style.display = 'block';
	DarkenPage();
}