var bw
var descc = new Array(); //defines length of img array


function show(gi) {
   	var object;
    
object = descc[gi];
object.visibility = 'VISIBLE';	
}

function hide(h_object) {
   	var object;
object = descc[h_object];
object.visibility = 'HIDDEN';      
}


function lib_bwcheck(){
	this.ver=navigator.appVersion
	this.agent=navigator.userAgent
	this.dom=document.getElementById?1:0
	this.opera5=this.agent.indexOf("Opera 5")>-1
	this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0; 
	this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
	this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
	this.ie=this.ie4||this.ie5||this.ie6
	this.mac=this.agent.indexOf("Mac")>-1
	this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0; 
	this.ns4=(document.layers && !this.dom)?1:0;
	this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
	return this
}


function init1(num,imgsrc,xsiz,ysiz,nbmax) {
       
  indesc = "desc" + num;
  inbigimage = "bigimage" + num;

  topx = 180;
  topy = 120;

  if (nbmax <= 20) mh = 880;
  if (nbmax <= 16) mh = 744;
  if (nbmax <= 12) mh = 600;
  if (nbmax <= 8 ) mh = 480;
 	
  nex = num + 1
  pre = num - 1
  
  resultat = imgsrc.indexOf('ovale', 1);
  if (resultat != -1) {
      if (xsiz > ysiz) {
         document.write("<div id='" + indesc + "' STYLE='Z-INDEX: 14;  VISIBILITY: hidden;  POSITION: absolute; top:" + topy + "px;  left:" + topx + "px;' onclick =\"hide(" + num + ");\"><table  width='670' bgcolor='#0A0B3A' height='" + mh + "'><tr><td valign='top'><a href='#' onclick =\"show(" + pre + ");\"><img src='../images/bleu/inf.jpg'></a></td> <td align='center' valign='center'><table cellspacing ='0' cellpadding='4'><tr><td><img  width='540' name='" + inbigimage + "' src='" + imgsrc + "' >  </td></tr></table></td><td valign='top'><a href='#' onclick =\"show(" + nex + ");\"><img src='../images/bleu/sup.jpg'></a> </td></tr></table></div>");
	    }else {         
         document.write("<div id='" + indesc + "' STYLE='Z-INDEX: 14;  VISIBILITY: hidden;  POSITION: absolute; top:" + topy + "px;  left:" + topx + "px;' onclick =\"hide(" + num + ");\"><table  width='677' bgcolor='#0A0B3A' height='" + mh + "'><tr><td valign='top' align='left'><a href='#' onclick =\"show(" + pre + ");\"><img src='../images/bleu/inf.jpg'></a></td> <td align='center' valign='center'><table cellspacing ='0' cellpadding='4'><tr><td><img  height='540' name='" + inbigimage + "' src='" + imgsrc + "' > </td></tr></table></td> <td valign='top' align='right'><a href='#' onclick =\"show(" + nex + ");\"><img src='../images/bleu/sup.jpg'>S</a> </td> </tr></table></div>");
      }  
  } else {
  
  if (xsiz > ysiz) {
   document.write("<div id='" + indesc + "' STYLE='Z-INDEX: 14;  VISIBILITY: hidden;  POSITION: absolute; top:" + topy + "px;  left:" + topx + "px;' onclick =\"hide(" + num + ");\"><table  width='670' bgcolor='#0A0B3A' height='" + mh + "'><tr><td valign='top'><a href='#' onclick =\"show(" + pre + ");\"><img src='../images/bleu/inf.jpg'></a></td> <td align='center' valign='center'><table border='1' bordercolor='#FFA800' cellspacing ='0' cellpadding='4'><tr><td><img  width='540' name='" + inbigimage + "' src='" + imgsrc + "' >  </td></tr></table></td><td valign='top'><a href='#' onclick =\"show(" + nex + ");\"><img src='../images/bleu/sup.jpg'></a> </td></tr></table></div>");
	}else {         
   document.write("<div id='" + indesc + "' STYLE='Z-INDEX: 14;  VISIBILITY: hidden;  POSITION: absolute; top:" + topy + "px;  left:" + topx + "px;' onclick =\"hide(" + num + ");\"><table  width='677' bgcolor='#0A0B3A' height='" + mh + "'><tr><td valign='top' align='left'><a href='#' onclick =\"show(" + pre + ");\"><img src='../images/bleu/inf.jpg'></a></td> <td align='center' valign='center'><table border='1' bordercolor='#FFA800' cellspacing ='0' cellpadding='4'><tr><td><img  height='540' name='" + inbigimage + "' src='" + imgsrc + "' > </td></tr></table></td> <td valign='top' align='right'><a href='#' onclick =\"show(" + nex + ");\"><img src='../images/bleu/sup.jpg'>S</a> </td> </tr></table></div>");
  }  
}
  
}

function init2(nbmax) {
for (var i = 0; i < nbmax; i++) {
	//create objects 
   	if(window.opera){
		descc[i] = document.getElementById("desc" + i).style;	
	}else if(bw.ns6) {
		descc[i] = document.getElementById("desc" + i).style;
	}else {
           descc[i] = document.all["desc" + i].style;
        }
}
 
}