function extractCurrentName(hrefString)
{
    var arr = hrefString.split('/');
    
    return  (arr.length < 2) ? hrefString :  arr[arr.length-2].toLowerCase() + arr[arr.length-1].toLowerCase();      
    //return  (arr.length<2) ? hrefString : arr[arr.length-2].toLowerCase() + arr[arr.length-1].toLowerCase();                          
}

function setArrowPosition(arr, crtPage,totThumb,getgrayimg)
{    

//alert("len =="+arr.length + "  cur page==="+crtPage );  
    for (var i=0; i<arr.length; i++)
    {      // alert("len =="+arr.length + "  cur page ==="+crtPage + "   href=="+arr[i].href + "   ex-href=="+extractPageName(arr[i].href)); 
    //alert(arr[i].href);
    //alert(extractPageName(arr[i].href));
        if(extractCurrentName(arr[i].id) == crtPage)
        {         //alert("len =="+arr.length + "  cur page src ==="+crtPage + "   href=="+arr[i].id);  
            var imgid= arr[i].id ;         
            var strImageName=arr[i].name ;
           
               arr[i].src=getgrayimg;         //"/laura_pierson/millerc_dev1/"+ 
             
            
            
            result = strImageName.replace("img","");
            
            if(totThumb <=6){
           // alert("in 6 --" + result);
                    switch(result){
                    case '1':
                      document.getElementById('movearrow').style.left='298px';  
                      break;
                      case '2':
                       //alert(result); 
                      document.getElementById('movearrow').style.left='248px';
                      
                      break;

                    case '3':
                      document.getElementById('movearrow').style.left='193px'; 
                      break;

                    case '4':
                      document.getElementById('movearrow').style.left='138px'; 
                      break;

                    case '5':
                      document.getElementById('movearrow').style.left='88px'; 
                      break;

                    case '6':
                      document.getElementById('movearrow').style.left='33px'; 
                      break;
                      
                      default:alert("not set");
                    }    
            }
           if(totThumb >=7){
             //alert("in 7");   
                    switch(result){
                    case '1':
                      document.getElementById('movearrow').style.left='313px';  
                      break
 
                    case '2':
                      document.getElementById('movearrow').style.left='265px'; 
                      break

                    case '3':
                      document.getElementById('movearrow').style.left='212px'; 
                      break

                    case '4':
                      document.getElementById('movearrow').style.left='163px'; 
                      break

                    case '5':
                      document.getElementById('movearrow').style.left='113px'; 
                      break

                    case '6':
                      document.getElementById('movearrow').style.left='64px'; 
                      break
                      
                    case '7':
                      document.getElementById('movearrow').style.left='13px'; 
                      break
                    }
                      
            }
          
            
    }
    
}
}


function setArrow(totChildids,getgrayimage)
{           //  alert(hrefString  + " ---" + totChildids);
    hrefString = document.location.href ? document.location.href : document.location;
       
    if (document.getElementById("thumbnail_img")!=null)
        setArrowPosition(document.getElementById("thumbnail_img").getElementsByTagName("img"), extractCurrentName(hrefString),totChildids,getgrayimage);
        
      
          
}
 
 
 
 
function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


<!--
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}


 
 
 
 /*  
   function img_mouseout(did,over,out)
{ 
      // alert("in fun");
    
          var nm= new Array();

        for(var i=1;i<=7; i++)
        {
             nm[i]='img'+i;
          //   alert("name=="+nm[i] + "id=="+did) ;
          
        
          if(did!=nm[i]){
              
              // ref= document.nm[i] ;
                 ref="document."+nm[i]+".src" ;   
              // alert("if == " + out +" name==  " +ref);    
            ref=out;                    
          }
          else  {         
         
          ref1="document."+did+".src" ;
            // alert("else==  "+ over +"  name==  "+ ref1);   
          ref1=over;                      
          //  alert("ref1=="+ref1.src); 
          }
        
          }              


}   

 function getImage(arr,crtPage,imgeid,imgover,imgout)
{    

//alert("len =="+arr.length + "  cur page==="+crtPage );  
    for (var i=0; i<arr.length; i++)
    {      
        if(extractCurrentName(arr[i].id) == crtPage)
        {       //  alert("len =="+arr.length + "  cur page src ==="+crtPage + "   href=="+arr[i].id);            
            var strImageName=arr[i].name ;
            result = strImageName.replace("img","");
        }
             
            alert(imgeid.length);
            getIdAt=imgeid.charAt((imgeid.length-1))
            
            
            if(getIdAt==result)             
               document.(img+result).src=imgover;              
            else             
                 document.(img+result).src=imgout;  
        
        
    }
    
} 
/*
function img_mouseout(id,over,out)
{    
alert("in fun");
hrefString = document.location.href ? document.location.href : document.location;  
   
 if (document.getElementById("thumbnail_img")!=null) 
          getImage(document.getElementById("thumbnail_img").getElementsByTagName("img"), extractCurrentName(hrefString),id,over,out);   
          
        /* if(id=="office1")
         {
             if(docid=='portfolio-office-huntington'){
                  document.img1.src=over;                          
             }
             else             
                 document.img1.src=out;                                                     
         }   
}         
         
      

}      */