var speed = 3;
//var scroll_width = numpics * 103;

function thumbslide() {
  //for IE browsers
	if (document.all) {
	  if (thumbslider.style.pixelLeft < (numpics - 3)*-100) {
		  if (thumbslider2.style.pixelLeft < scroll_width*-1) { //start from beginning
  		  thumbslider2.style.pixelLeft = 300;
				thumbslider.style.pixelLeft -= speed;
  			setTimeout("thumbslide(speed)",100);
  		} else {
  		  thumbslider2.style.pixelLeft -= speed;
				thumbslider.style.pixelLeft -= speed;
  			setTimeout("thumbslide(speed)",100);		
  		}
		} else {
  		if (thumbslider.style.pixelLeft < scroll_width*-1) { //start from beginning
  		  thumbslider.style.pixelLeft = 300;
				thumbslider2.style.pixelLeft -= speed;
  			setTimeout("thumbslide(speed)",100);
  		} else {
  		  thumbslider.style.pixelLeft -= speed;
				thumbslider2.style.pixelLeft -= speed;
  			setTimeout("thumbslide(speed)",100);		
  		}
    }
		if (thumbslider.style.pixelLeft < (scroll_width*-1) && thumbslider2.style.pixelLeft < (numpics - 3)*-100 ) {
		  thumbslider.style.pixelLeft = 300;
		}	
	} 
	//For Netscape Browsers
	else if (document.getElementById&&!document.all){
    if (parseInt(document.getElementById('thumbslider').style.left) < (numpics - 3)*-100) {
		  if (parseInt(document.getElementById('thumbslider2').style.left) < scroll_width*-1) { //start from beginning
  		  document.getElementById('thumbslider2').style.left = 300;
				document.getElementById('thumbslider').style.left = parseInt(document.getElementById('thumbslider').style.left) - speed;
  			setTimeout("thumbslide(speed)",100);
  		} else {
			  document.getElementById('thumbslider2').style.left = parseInt(document.getElementById('thumbslider2').style.left) - speed;
			  document.getElementById('thumbslider').style.left = parseInt(document.getElementById('thumbslider').style.left) - speed;
  		  setTimeout("thumbslide(speed)",100);		
  		}
		} else {
  		if (parseInt(document.getElementById('thumbslider').style.left) < scroll_width*-1) { //start from beginning
  		  document.getElementById('thumbslider').style.left = 300;
				document.getElementById('thumbslider2').style.left = parseInt(document.getElementById('thumbslider2').style.left) - speed;
  			setTimeout("thumbslide(speed)",100);
  		} else {
  		  document.getElementById('thumbslider').style.left = parseInt(document.getElementById('thumbslider').style.left) - speed;
			  document.getElementById('thumbslider2').style.left = parseInt(document.getElementById('thumbslider2').style.left) - speed;
  		  setTimeout("thumbslide(speed)",100);		
  		}
    }
		if (parseInt(document.getElementById('thumbslider').style.left) < (scroll_width*-1) && parseInt(document.getElementById('thumbslider2').style.left) < (numpics - 3)*-100 ) {
		  document.getElementById('thumbslider').style.left = 300;
		}
		
	}
}