sid=new Array(0,0);
slid=new Array(0,0);
function chagecube(iShow,Str,iNo){
	switch(iShow){
		case 'P':
			this.sid[iNo]=--this.sid[iNo];
		break;
		case 'N':
			this.sid[iNo]=++this.sid[iNo];
		break;
		default:this.sid[iNo]=iShow;
		break;
	}
	oHidden=document.getElementById('cube'+Str+'_'+this.slid[iNo]);
	oShow=document.getElementById('cube'+Str+'_'+this.sid[iNo]);
	oAMark=document.getElementById('a'+Str+'_'+this.sid[iNo]+'_'+this.sid[iNo]);
	oHidden.style.display = 'none';
	oShow.style.display = 'block';
	oAMark.style.color = '#fff';
	this.slid[iNo] = this.sid[iNo];
	//alert(this.sid+'.'+this.aaa);
}