function preLoadPicture(pic) {
	heavyImage = new Image(); 
	heavyImage.src = CurUrl + pic + ".jpg";

}

// 2 5 8 11 14 17 20 23 26 29
// setTimeout("immobile_100()",3000);

var OriPicNum = 0;
var CurDocument = 0;
var CurPicNum = 0;
var CurUrl = "";

function getNextThumbNum(CurNum) 
    {
	    thumbs = new Array(2,5,8,11,14,17,20,23,26,29);
	    for (i = 0; i < thumbs.length; i++) 
            {
		        if (thumbs[i] > CurNum) 
                    {
			            return thumbs[i];
		            }
	        }
	    return thumbs[0];
    }

function nextThumbnail(idDoc) 
    {
	    if (CurDocument != 0 && idDoc == CurDocument) 
            {
		        document.getElementById("pic_" + CurDocument).src = CurUrl + CurPicNum + ".jpg";
		        nextthumb = getNextThumbNum(CurPicNum);
		        preLoadPicture(nextthumb);
		        CurPicNum = nextthumb;
		        setTimeout("nextThumbnail("+ CurDocument +")", 1000);
	        }
    }

function stopThumbSlide() 
    {
	    TmpDoc = CurDocument;
	    CurDocument = 0;
	    document.getElementById("pic_" + TmpDoc).src = CurUrl + OriPicNum + ".jpg";	
    }

function startThumbSlide(IdDoc, CurNum, Url) 
    {
	    if (CurDocument == 0) 
            {
		        OriPicNum = CurNum;
		        CurDocument = IdDoc;
		        CurUrl = Url;
		        nextthumb = getNextThumbNum(CurNum);
		        preLoadPicture(nextthumb);
		        CurPicNum = nextthumb;
		        setTimeout("nextThumbnail("+ CurDocument +")", 20);
	        }
    }