function set_target_blank(obj) 
{
	obj.target = '_blank';
}



function get_window_height(win) {   
    if (win == undefined) win = window;   
    if (win.innerHeight) {   
        return win.innerHeight;   
    }   
    else {   
        if (win.document.documentElement   
            && win.document.documentElement.clientHeight) {   
            return win.document.documentElement.clientHeight;   
        }   
        return win.document.body.offsetHeight;   
    }   
}