var hst=0;
	  var np=5;
	  function his_n(){
	  if(hst>=2){
	    hst=2;
		}else{
		  hst++;
		  }
		
	    pix=2003+hst;
		imgs='<a href="history'+pix+'.html" target="_blank"><img src="images/'+pix+'.gif" onmouseover="set_src(this,\'images/'+pix+'_1.gif\')"  border="0" onmouseout="set_src(this,\'images/'+pix+'.gif\')"/></a>';
	    document.getElementById("hst0").innerHTML=imgs;
		pix=2004+hst;
		imgs='<a href="history'+pix+'.html" target="_blank"><img src="images/'+pix+'.gif" onmouseover="set_src(this,\'images/'+pix+'_1.gif\')" border="0" onmouseout="set_src(this,\'images/'+pix+'.gif\')"/></a>';
	    document.getElementById("hst1").innerHTML=imgs;
		pix=2005+hst;
		imgs='<a href="history'+pix+'.html" target="_blank"><img src="images/'+pix+'.gif" onmouseover="set_src(this,\'images/'+pix+'_1.gif\')" border="0" onmouseout="set_src(this,\'images/'+pix+'.gif\')"/></a>';
	    document.getElementById("hst2").innerHTML=imgs;
		pix=2006+hst;
		imgs='<a href="history'+pix+'.html" target="_blank"><img src="images/'+pix+'.gif" onmouseover="set_src(this,\'images/'+pix+'_1.gif\')" border="0" onmouseout="set_src(this,\'images/'+pix+'.gif\')"/></a>';
	    document.getElementById("hst3").innerHTML=imgs;	   
     
	  }
	  
	  function his_p(){
	  if(hst<1){
	    hst=0;
		}
		else{
		hst--;
		}
	  
	    pix=2003+hst;
		imgs='<img src="images/'+pix+'.gif" />';
	    document.getElementById("hst0").innerHTML=imgs;
		pix=2004+hst;
		imgs='<img src="images/'+pix+'.gif" />';
	    document.getElementById("hst1").innerHTML=imgs;
		pix=2005+hst;
		imgs='<img src="images/'+pix+'.gif" />';
	    document.getElementById("hst2").innerHTML=imgs;
		pix=2006+hst;
		imgs='<img src="images/'+pix+'.gif" />';
	    document.getElementById("hst3").innerHTML=imgs;
		}