function tab_createFilterCombo(comboId,tabs,filterCol){
	var tabValue = new Array();
	for(var i = 0; i < tabs.length; i++){
		var value = tabs[i][filterCol];
		if(tabValue[value] == null){
			if (value!=null & value.length>0 && value!="--string null--") {
				var o = new Option(	value,value,	false,false);
				document.getElementById( comboId ).options[ document.getElementById( comboId ).options.length ] = o; 
				tabValue[value] = value;
			}
		}
	}
}
 
function tab_applyFilter(comboId,tabs,filterColumn) {
	tabs.nePasFiltrer();
	if( document.getElementById( comboId ).selectedIndex != 0 ) tabs.filtrer( filterColumn, function( s )	{ return s == document.getElementById( comboId ).options[ document.getElementById( comboId )	.selectedIndex ].value } );
}
 
 
function tab_applyFilterOnFirstChar(comboId,tabs,filterColumn) {
	tabs.nePasFiltrer();
	if( document.getElementById( comboId ).selectedIndex != 0 ) 
		tabs.filtrer( filterColumn, function( s )	{ 
			alert (s); 
			return s.chartAt(0) == document.getElementById( comboId ).options[ document.getElementById( comboId ).selectedIndex ].value 
		});
}