<script> function getPageNumRange(pagenumstr)
{
var pages=pagenumstr.split(";");
pages.sort(function(a,b){
return a-b;
});
var delta=0;
var lianxiu=new Array();
var bulianxiu=new Array();
for(var i=0;i<pages.length;i++){
delta=0;
delta=(1*pages[i+1])-(1*pages[i]);
if(1==delta)
{ //连续
lianxiu.push(pages[i]);
lianxiu.push(pages[i+1]);
}
else
{
if(delta>1)
{ //不连续
lianxiu.push("|");
if(lianxiu.indexOf(pages[i])==-1)
bulianxiu.push(pages[i]);
}
} if (i==pages.length-1){
if(lianxiu.indexOf(pages[i])==-1)
{
bulianxiu.push(pages[i]);
}
}
} lianxiuStr=lianxiu.toString().replace(/\|\,/g,"|").replace(/\,\|/g,"|");
var lianxiuArr=lianxiuStr.split("|");
var ResultStr1="";
for(var i=0;i<lianxiuArr.length;i++){
var yema=lianxiuArr[i];
if(""!=yema)
{
var yemaArr=yema.split(","); if(""==ResultStr1)
{
ResultStr1=yemaArr[0]+"-"+yemaArr[yemaArr.length-1];
}
else
{
ResultStr1=ResultStr1+";"+yemaArr[0]+"-"+yemaArr[yemaArr.length-1];
}
}
}//for var resultPageNums="";
var resultList=ResultStr1.split(";"); for(var i=0;i<bulianxiu.length;i++){
resultList.push(bulianxiu[i]);
} resultList.sort(function(a,b){
var v1,v2;
if(a.indexOf("-")!=-1)
{
v1=a.substr(0,a.indexOf("-"))*1;
}else v1=a*1; if(b.indexOf("-")!=-1)
{
v2=b.substr(0,b.indexOf("-"))*1;
}else v2=b*1;
return v1-v2;
});
return resultList.toString();
} alert(getPageNumRange("9;10;17;18;19;21;23;25;26;27;28;30;36;37;38;40")); </script>