function showDIV(prm) {

 var dvName = prm.substring(0,5) ;
 var dvLen = prm.length ;
 var dvNum = prm.substring(5,dvLen) ;
 var divs = document.getElementsByTagName("DIV") ;
 var dvCount = 0 ;
 var elm ;
 var fld ;

 for (var i=0; i<divs.length; i++)
 { 
	 elm = divs[i].id.substring(0,5) ;
	
	 if(elm == dvName)
	 {
		dvCount ++;
	 }	 
 }
 


	for (var i=1; i<=dvCount; i++)
	{ 
		if( i == dvNum )
		{

		    fld = document.getElementById(dvName+i) ;
		    if(fld.style.display == 'none')
			    document.getElementById(dvName + i).style.display = '' ;
			else
			    document.getElementById(dvName + i).style.display = 'none' ;
		}
		else 
		{
			document.getElementById(dvName + i).style.display = 'none' ;
		}
	}
 }