//分页显示漫画列表
function toPage(pageNum,pageCount,pageName,pageExt) {
	pageNum = pageNum || 0;

	if(pageNum<=0) {
		pageNum=0;
	}

	if(pageNum>=pageCount) {
		pageNum=pageCount-1;
	}

	var url=pageName+"_"+pageNum+"."+pageExt;
    if(pageNum==0) {
		url = pageName+"."+pageExt;
	}
	window.location.href=url;	
}
function checkValue(pageCount,pageName,pageExt){
	var currPage=document.getElementById("pageindex").value;
	var regu = /^[-]{0,1}[0-9]{1,}$/;
	if(regu.test(currPage)&& parseInt(currPage)>=1 && parseInt(currPage)<=pageCount){
		 toPage(currPage-1,pageCount,pageName,pageExt);
	}else{ 
		  alert("请输入有效的页码");
	}
}

function createPageHTML(_nPageCount, _nCurrIndex, _sPageName, _sPageExt){ 
	if(_nPageCount == null || _nPageCount<=1){ 
		return; 
	}
	var nCurrIndex = _nCurrIndex || 0; 
	  
	var sLocation=window.location.href;
	var nIndex=1;
	if(sLocation.indexOf("_")<=0) {
		nIndex=1;
	} else {
		nIndex=parseInt(sLocation.split("_")[1].split(".")[0]) + 1;
	}
	
	var sPagerResult='<div class="page_btn">';//"<table align='center'><tr>";
          
	//sPagerResult+="<a "+(nIndex==1?'onclick2':'style=\'cursor:pointer\' onclick')+"=\"toPage(0,"+_nPageCount+",'"+_sPageName+"','"+_sPageExt+"')\">首页</a>";
	sPagerResult+="<a href='"+_sPageName+"."+_sPageExt+"'>首页</a>";
	//sPagerResult+="<a class='prev' "+(nIndex==1?'onclick2':'style=\'cursor:pointer\' onclick')+"=\"toPage("+(_nCurrIndex-1)+","+_nPageCount+",'"+_sPageName+"','"+_sPageExt+"')\">上一页</a>";
	sPagerResult+="<a class='prev' href='"+_sPageName+((_nCurrIndex==0 || _nCurrIndex==1) ? "" : ("_"+(_nCurrIndex-1)))+"."+_sPageExt+"'>上一页</a>";
 
	//sPagerResult+="<a class='next' "+(nIndex==(_nPageCount)?'onclick2':'style=\'cursor:pointer\' onclick')+"=\"toPage("+(_nCurrIndex+1)+","+_nPageCount+",'"+_sPageName+"','"+_sPageExt+"')\">下一页</a>";
	sPagerResult+="<a class='next' href='"+_sPageName+"_"+((_nCurrIndex==(_nPageCount-1))?(_nPageCount-1):(_nCurrIndex+1))+"."+_sPageExt+"'>下一页</a>";
	//
    sPagerResult+="<a href='"+_sPageName+"_"+(_nPageCount-1)+"."+_sPageExt+"'>尾页</a></div><div class='form_txt'>";
	sPagerResult+="<span>共"+_nPageCount+"页</span>"//共50条记录&nbsp;";
	
	sPagerResult+="转到第&nbsp;<input class='wid_input' type='text' name='textfield' size='2' value='" + nIndex + "' id='pageindex'>&nbsp;页<input class='btn_go' type='button' onclick"+"=\"checkValue('"+_nPageCount+"','"+_sPageName+"','"+_sPageExt+"')\"/></div>";
 
	//sPagerResult+="</tr></table>";
	document.write(sPagerResult);
}