var wt_sticky_top_position=0;var wt_sticky_document_height=0;var wt_sticky_top_margin=10;var wt_sticky_footer_height=0;var wt_sticky_id="";function wt_add_event(a,d,b){if(a.addEventListener){a.addEventListener(d,b,false);return true}else{if(a.attachEvent){var c=a.attachEvent("on"+d,b);return c}else{return false}}}function wt_sticky_scroll(){if(!wt_sticky_id){return false}if(window.innerHeight){y_position=window.pageYOffset}else{if(document.documentElement&&document.documentElement.scrollTop){y_position=document.documentElement.scrollTop}else{if(document.body){y_position=document.body.scrollTop}}}var a=document.getElementById(wt_sticky_id);if(y_position>wt_sticky_top_position){if((wt_sticky_document_height+wt_sticky_top_margin)>(y_position+wt_sticky_footer_height+a.offsetHeight)){a.style.top=wt_sticky_top_margin+y_position+"px"}}else{a.style.top=wt_sticky_top_position+"px"}}function wt_initialize_sticky(){var a=document.getElementById(wt_sticky_id);wt_sticky_document_height=Math.max(document.body.scrollHeight,document.body.offsetHeight,document.documentElement.clientHeight,document.documentElement.scrollHeight,document.documentElement.offsetHeight);if(a){var c=a;var b=0;while(c!=null){if(c.style.position=="absolute"){b+=c.offsetTop}else{wt_sticky_top_position+=c.offsetTop}c=c.offsetParent}wt_sticky_top_margin-=b;a.style.position="absolute";wt_add_event(window,"scroll",wt_sticky_scroll)}}function wt_sticky(c,a,b){wt_sticky_id=c;if(a!=undefined){wt_sticky_top_margin=a}if(b!=undefined){wt_sticky_footer_height=b}wt_add_event(window,"load",wt_initialize_sticky)};