//var imgNum=14;
var per=6;

function getImgFileName($index){
	return imgFiles[$index-1];
}

function mainImg_click(){
	var index=getCurFileIndex();
	if(index<imgNum){
		if(index%per==0){
			bnPreNext_click(1);
		}
		else{
			setCurSelSnapImg(imgFiles[index]);
			setMainImg(imgFiles[index]);
		}		
	}	
}

function img_click(obj){
	var index1=obj.src.lastIndexOf("_");
	var index2=obj.src.lastIndexOf(".");
	
	var tmp=obj.src.substring(index1+1,index2);
	var index=parseInt(tmp);
	
	setCurSelSnapImg(index);
	setMainImg(index);
}

function getImgSrcByIndex(index,bDiv){
	var obj=document.getElementById('img'+(bDiv?'C':'')+'_0');
	var index1=obj.src.lastIndexOf("_");
	var index2=obj.src.lastIndexOf(".");
	
	return obj.src.substring(0,index1+1)+getImgFileName(index)+obj.src.substring(index2);
}

function setCurSelSnapImg(index){
	index=getIndexByFileName(index);
	var mfileIndex=getCurFileIndex();
	var curIndex=(mfileIndex-1)%per;
	index=(index-1)%per;
	var curObj=document.getElementById('img_'+curIndex);	
	var obj=document.getElementById('img_'+index);
	curObj.className="usP";
	curObj.parentNode.className="usC";
	obj.className="sP";
	obj.parentNode.className="sC";
	
}

function getIndexByFileName($imgName){
	var index=0;
	for(var i=0;i<imgFiles.length;i++){
		if(imgFiles[i]==$imgName){
			index=i+1;
			break;
		}
	}
	return index;
}

function getCurFileIndex(){
	var obj=document.getElementById("mainImg");
	var index1=obj.src.lastIndexOf("_");
	var index2=obj.src.lastIndexOf(".");
	
	var tmp=obj.src.substring(index1+1,index2);
	var index=parseInt(tmp);
	
	return getIndexByFileName(index);
}

function setMainImg(index){
	var obj=document.getElementById("mainImg");
	var index1=obj.src.lastIndexOf("_");
	var index2=obj.src.lastIndexOf(".");
	
	var img=new Image();
	img.id="mainImg";
	img.onclick=function(){mainImg_click();}
	img.onload=function(){
		if(img.width>710){img.style.width='710px';img.style.height=parseInt(img.height*710/img.width)+'px';}
	}
	img.src=obj.src.substring(0,index1+1)+index+obj.src.substring(index2);	
	
	obj.parentNode.replaceChild(img,obj);
}

function bnPreNext_click(flag){
	var curIndex=getCurFileIndex()-1;
	if(flag==0){
		if(parseInt(curIndex/per)>0){
			for(var i=0;i<5;i++){
				var obj=document.getElementById('img_'+i);
				obj.className="usP";
				obj.parentNode.className="usC";
			}
			var startIndex=(parseInt(curIndex/per)-1)*per;
			for(var i=0;i<6;i++){
				var obj=document.getElementById('img_'+i);
				obj.style.display='block';
				
				obj.src=getImgSrcByIndex(startIndex+i+1,false);
				if(i==5){
					obj.className="sP";
					obj.parentNode.className="sC";
					setMainImg(imgFiles[startIndex+i]);
				}
				else{
					obj.className="usP";
					obj.parentNode.className="usC";
				}
			}
			
			document.getElementById('bn_1').src='../../img/bnNext.png';
			
		}
		else{
			if(imgNum>per){
				document.getElementById('bn_1').src='../../img/bnNext.png';
			}
			else{
				document.getElementById('bn_1').src='../../img/bnNextNo.png';
			}
						
		}
		
		if(parseInt(curIndex/per)>1){
			document.getElementById('bn_0').src='../../img/bnPre.png';
		}
		else{
			document.getElementById('bn_0').src='../../img/bnPreNo.png';
		}
		
		
				
	}
	else{		
		if((parseInt(curIndex/per)+1)*per<imgNum){
			for(var i=1;i<6;i++){
				var obj=document.getElementById('img_'+i);
				obj.className="usP";
				obj.parentNode.className="usC";
			}
			var startIndex=(parseInt(curIndex/per)+1)*per;
			for(var i=0;i<6;i++){
				var obj=document.getElementById('img_'+i);
				if(startIndex+i+1>imgNum){
					obj.style.display='none';
					continue;
				}
				
				obj.src=getImgSrcByIndex(startIndex+i+1,false);
				if(i==0){
					obj.className="sP";
					obj.parentNode.className="sC";
					setMainImg(imgFiles[startIndex+i]);
				}
				else{
					obj.className="usP";
					obj.parentNode.className="usC";
				}
			}
			
			document.getElementById('bn_0').src='../../img/bnPre.png';
			if(imgNum<=(parseInt(curIndex/per)+2)*per){
				document.getElementById('bn_1').src='../../img/bnNextNo.png';
			}
			else{
				document.getElementById('bn_1').src='../../img/bnNext.png';
			}		
		}
		else{
			if(parseInt(curIndex/per)>0){
				document.getElementById('bn_0').src='../../img/bnPre.png';
			}
			else{
				document.getElementById('bn_0').src='../../img/bnPreNo.png';
			}

			if(imgNum<=(parseInt(curIndex/per)+1)*per){
				document.getElementById('bn_1').src='../../img/bnNextNo.png';
			}
			else{
				document.getElementById('bn_1').src='../../img/bnNext.png';
			}
				
		}
		
		
		
	}
	
	
	
	
	
	
}

function bnPreNext_mouseover(flag){
	var curIndex=getCurFileIndex()-1;
	if(flag==0){
		if(parseInt(curIndex/per)>0){
			document.getElementById('bn_0').src='../../img/bnPreG.png';
		}
	}
	else{
		if(imgNum>(parseInt(curIndex/per)+1)*per){
			document.getElementById('bn_1').src='../../img/bnNextG.png';
		}
	}
	
}

function bnPreNext_mouseout(flag){
	var curIndex=getCurFileIndex()-1;
	if(flag==0){
		if(parseInt(curIndex/per)>0){
			document.getElementById('bn_0').src='../../img/bnPre.png';
		}
	}
	else{
		if(imgNum>(parseInt(curIndex/per)+1)*per){
			document.getElementById('bn_1').src='../../img/bnNext.png';
		}
	}
}

//*************************************
// ads
//*************************************

function rtpics(){
	var ps=['http://www.mnxzh.com/_fwm/2010/07/18/47/s_47_12794542452.jpg'
	,'http://www.mnxzh.com/_fwm/2010/07/18/49/s_49_12794604230.jpg'
	,'http://www.mnxzh.com/_fwm/2010/07/22/60/s_60_12798014050.jpg'
	,'http://www.mnxzh.com/_fwm/2010/07/22/59/s_59_12798009064.jpg'
	];
	
	var s="<div><ul class=rtimgUL>";
	for(var i=0;i<ps.length;i++){
		s+="<li><a href=\""+jumpUrl+"\" target=_blank><img src="+ps[i]+" /></a></li>"
	}
	s+="</ul><div class=clr></div></div>";
	document.write(s);
}

function h1topad(){
	var ps=['1.jpg','2.jpg','3.jpg','4.jpg'
	    	,'5.jpg','6.jpg','7.jpg','8.jpg'];
	var urls=["1.html",
	          "2.html",
	          "3.html",
	          "4.html",
	          "5.html",
	          "6.html",
	          "7.html",
	          "8.html"];
	    	
	var s="<div><ul class=h1topUL>";
	for(var i=0;i<ps.length;i++){
		s+="<li><a href=\"http://www.onfav.com/top/online-shopping-save-money/online-shopping-save-money-dollars-"+urls[i]+"\" target=_blank><img src=http://www.mnxzh.com/img/ads/"+ps[i]+" /></a></li>"
	}
	s+="</ul><div class=clr></div></div>";
	document.write(s);
	
}