function description_tabbing(showno,prefix)
{
	
	//var prefix = "description_tabbing_";
	var container = "p";
	var tab = "tab";
	
	var tabv = "active";
	var tabi = "";
	var containerv = "";
	var containeri = "hide";
	
	var total = 4;
	var classname = "";
	
	for(var i=1; i<=total; i++ ) {
		
		con_classname = document.getElementById(prefix+container+i).className;
		tab_classname = document.getElementById(prefix+tab+i).className;

		if (tab_classname.indexOf(tabv)!=-1  || con_classname.indexOf(containeri)==-1) {
			tab_classname = tab_classname.replace( tabv , "" );
			document.getElementById(prefix+tab+i).className = tab_classname;
			document.getElementById(prefix+tab+i).className += " "+tabi;
			
			con_classname = con_classname.replace( containerv , "" );
			document.getElementById(prefix+container+i).className = con_classname;
			document.getElementById(prefix+container+i).className += " "+containeri;
		
		}
		
		if (i == showno) {
			con_classname = con_classname.replace( containeri , "" );
			document.getElementById(prefix+container+i).className = con_classname;
			document.getElementById(prefix+container+i).className += " "+containerv;
			
			tab_classname = tab_classname.replace( tabi , "" );
			document.getElementById(prefix+tab+i).className = tab_classname;
			document.getElementById(prefix+tab+i).className += " "+tabv;
		}
		
	}
	
	
}