var slideInUse=new Array();function Slide(objId,options){this.obj=document.getElementById(objId);this.duration=1;this.height=parseInt(this.obj.style.height);if(typeof options!='undefined'){this.options=options;}else{this.options={};}
if(this.options.duration){this.duration=this.options.duration;}
this.up=function(){this.curHeight=this.height;this.newHeight='1';if(slideInUse[objId]!=true){var finishTime=this.slide();window.setTimeout("Slide('"+objId+"').finishup("+this.height+");",finishTime);}}
this.down=function(){this.newHeight=this.height;this.curHeight='1';if(slideInUse[objId]!=true){this.obj.style.height='1px';this.obj.style.display='block';this.slide();}}
this.slide=function(){slideInUse[objId]=true;var frames=30*duration;var tIncrement=(duration*1000)/frames;tIncrement=Math.round(tIncrement);var sIncrement=(this.curHeight-this.newHeight)/frames;var frameSizes=new Array();for(var i=0;i<frames;i++){if(i<frames/2){frameSizes[i]=(sIncrement*(i/frames))*4;}else{frameSizes[i]=(sIncrement*(1-(i/frames)))*4;}}
for(var i=0;i<frames;i++){this.curHeight=this.curHeight-frameSizes[i];window.setTimeout("document.getElementById('"+objId+"').style.height='"+Math.round(this.curHeight)+"px';",tIncrement*i);}
window.setTimeout("delete(slideInUse['"+objId+"']);",tIncrement*i);if(this.options.onComplete){window.setTimeout(this.options.onComplete,tIncrement*(i-2));}
return tIncrement*i;}
this.finishup=function(height){this.obj.style.display='none';this.obj.style.height=height+'px';}
return this;}