function wopen(url,name,width,height,k)
    {
     LeftPosition = (screen.width) ? (screen.width-width)/2 : 0;
     TopPosition  = (screen.availHeight) ? (screen.availHeight-height)/2 : 0 ;
     window.open(url,name,'top='+ TopPosition+',left='+ LeftPosition+ ',width='+width+',height='+height+',resizable=0,scrollbars='+k+',status=0');
    }
    
    function checkwh_image(objImage,MaxWSize,MaxHSize){
	 var iRate=0,iMaxSize;
	 
	 if (objImage.width>MaxWSize){
   	  iRate = (MaxWSize / objImage.width);    
   	  objImage.height = (objImage.height * iRate);
      objImage.width = MaxWSize;
      
   }
   
   if (objImage.height>MaxHSize){
      
      iRate = (MaxHSize / objImage.height);                
      objImage.width = (objImage.width * iRate);
      objImage.height = MaxHSize;
   	
   }
   
   objImage.style.display = "Block";	
}