function get_height(a){var b=0;if(a&&a.originalHeight){b=a.originalHeight}else{if(a.style.display=="none"){a.style.overflow="hidden";a.style.visibility="hidden";a.style.display="";b=a.offsetHeight;a.style.display="none"}else{b=a.offsetHeight}}a.originalHeight=b;return b}function do_slide(g,h,b,a){var f=g.offsetHeight;var d=(f/h);if((f*a)<h){g.style.height=(f+(32*a))+"px";g.style.opacity=d;setTimeout(function(){do_slide(g,h,b,a)},b)}else{var c=(a==-1)?0:h;g.style.height=c+"px";g.style.opacity=1;if(a==-1){g.style.display="none";g.style.visibility="hidden"}else{g.style.visibility="visible"}}}function slide_elt(b,d){var g=document.getElementById(b);if(d==null){d=(g.style.display=="none")?true:false}if(d==true){d=1}else{d=-1}var a=get_height(g);var c=(d==1)?a:-31;var f=(d==1)?0:a;g.style.overflow="hidden";g.style.display="";g.style.height=f+"px";g.style.visibility="visible";g.style.opacity=(d==1)?0:1;do_slide(g,c,1,d);return false};