/*画饼图函数 2004年12月2日 VISN:Ridge Wong*/
//例子：DrawPie("水果分页图例","苹果|橘子|香蕉|梨|板栗","33|33|34|55|77");
function DrawPie(sTopic,sItems,sItemnums)
{
   var maxScale = Math.pow(2,16);
   var itemArray = sItems.split("|");
   var numArray  = sItemnums.split("|");
   if (itemArray.length!=numArray.length) { document.write("选择项目和相应数目不匹配。");return;}
   var total=0,i,k=numArray.length;
   var startAN=0,endAN=0;
   var vGrapics="";
   for (i=0;i<k;i++) { total+=parseInt(numArray[i]);}
   if (total<=0) { document.write("总数目必须位正数。");return;}
   /*-----控制显示颜色-----*/
   var myColor = new Array("#ffff33","#ff9933","#3399ff","#99ff33","#ff6600",
	   "#ff99ff","#ccff99","#9999ff","#006699","rgb(128,128,196)",
	   "#BA1794");
   var sColor = new Array(k);
   for (i=0;i<k;i++) 
	{ 
	  sColor[i] = (i<myColor.length) ? myColor[i] : "rgb("+Math.ceil(Math.random()*256)+","+Math.ceil(Math.random()*256)+","+Math.ceil(Math.random()*256)+")";
	}

   vGrapics += "<table border='0' height='180px' cellpadding='5' cellspacing='1' bgcolor='#f3f3f3' border='0' align='center'>";
   vGrapics += "<tr bgcolor='#ffffff'><td colspan='2' align='center' valign='middle'>";
   vGrapics += "<v:RoundRect style='width:280;height:20px;' strokecolor='white' fillcolor='white'>"+
    "<v:TextBox inset='1pt,1pt,1pt,1pt' style='font-size:12px;font-family:verdana;'><div align='center'>"+sTopic+"</div></v:TextBox>"+
    "</v:RoundRect>";
   vGrapics += "</td></tr>";
   vGrapics += "<tr bgcolor='#ffffff'><td align='left'>";
   vGrapics += "<v:group style='width:120px; height:120px;sbackground-color:#f3f3f3' coordorigin='0,0' coordsize='320,320'>";
   for (i=0;i<k;i++)
   {
	    endAN = ((numArray[i]/total)*360).toFixed(2);
        vGrapics += "<v:shape id='"+ itemArray[i] + "' style='cursor:hand;width:10;height:10;top:10;left:0'  title='选项" + (i+1) + ": " + itemArray[i] + "&#13;&#10;" + "数目:" + numArray[i] + "  比例:" + ((numArray[i]/total)*100).toFixed(2) + "%' onmouseover='javascript:show(this);' onmouseout='javascript:hide(this);' onclick=\"javascript:alert(this.title+'\\n\\n--Living Counter Alpha!--\\n(c)2003-2004 WWW.VBYTE.COM');\" CoordSize='10,10' strokecolor='white' fillcolor='" + sColor[i] + "'>";
	    vGrapics += "<v:path v='m 250,180 ae 250,180,240,190," + Math.ceil(maxScale*startAN) + "," + Math.ceil(maxScale*endAN) + " xe'\/>";
	    vGrapics += "</v:shape>";
	    startAN = startAN + parseFloat(endAN);
   }
   vGrapics += "</v:group>";
   vGrapics += "</td><td align='left' valign='middle'>";

   var spk = 1;
   if ((k-1)>3) { spk = Math.floor(k/3);}
   /*---根据宽度调整-----*/
   spk = (spk>3) ? 3 : spk;
   for (i=0;i<k;i++)
   {
	    
		vGrapics += "<v:RoundRect style='width:260;height:30px;' fillcolor='" + sColor[i] + "'>";
		vGrapics += "<v:TextBox inset='5pt,5pt,5pt,5pt' style='font-size:12px;'>"+itemArray[i]+"  数目:" + numArray[i] + "(" + ((numArray[i]/total)*100).toFixed(1) + "%)</v:TextBox>";
		vGrapics += "</v:RoundRect>";
		vGrapics += (((i+1)%spk)==0) ? "<br>" : "";
		
   }
   vGrapics += "</tr></table>";
   document.write(vGrapics);
}

function show(pie) { pie.strokecolor=pie.fillcolor; pie.strokeweight=1; }
function hide(pie) { pie.strokecolor="white"; pie.strokeweight=1; }