Chris@909: var NS4 = (navigator.appName == "Netscape" && parseInt(navigator.appVersion) < 5);
Chris@909: 
Chris@909: function addOption(theSel, theText, theValue)
Chris@909: {
Chris@909:   var newOpt = new Option(theText, theValue);
Chris@909:   var selLength = theSel.length;
Chris@909:   theSel.options[selLength] = newOpt;
Chris@909: }
Chris@909: 
Chris@909: function swapOptions(theSel, index1, index2)
Chris@909: {
Chris@909: 	var text, value;
Chris@909:   text = theSel.options[index1].text;
Chris@909:   value = theSel.options[index1].value;
Chris@909:   theSel.options[index1].text = theSel.options[index2].text;
Chris@909:   theSel.options[index1].value = theSel.options[index2].value;
Chris@909:   theSel.options[index2].text = text;
Chris@909:   theSel.options[index2].value = value;
Chris@909: }
Chris@909: 
Chris@909: function deleteOption(theSel, theIndex)
Chris@909: { 
Chris@909:   var selLength = theSel.length;
Chris@909:   if(selLength>0)
Chris@909:   {
Chris@909:     theSel.options[theIndex] = null;
Chris@909:   }
Chris@909: }
Chris@909: 
Chris@909: function moveOptions(theSelFrom, theSelTo)
Chris@909: {
Chris@909:   
Chris@909:   var selLength = theSelFrom.length;
Chris@909:   var selectedText = new Array();
Chris@909:   var selectedValues = new Array();
Chris@909:   var selectedCount = 0;
Chris@909:   
Chris@909:   var i;
Chris@909:   
Chris@909:   for(i=selLength-1; i>=0; i--)
Chris@909:   {
Chris@909:     if(theSelFrom.options[i].selected)
Chris@909:     {
Chris@909:       selectedText[selectedCount] = theSelFrom.options[i].text;
Chris@909:       selectedValues[selectedCount] = theSelFrom.options[i].value;
Chris@909:       deleteOption(theSelFrom, i);
Chris@909:       selectedCount++;
Chris@909:     }
Chris@909:   }
Chris@909:   
Chris@909:   for(i=selectedCount-1; i>=0; i--)
Chris@909:   {
Chris@909:     addOption(theSelTo, selectedText[i], selectedValues[i]);
Chris@909:   }
Chris@909:   
Chris@909:   if(NS4) history.go(0);
Chris@909: }
Chris@909: 
Chris@909: function moveOptionUp(theSel) {
Chris@909: 	var index = theSel.selectedIndex;
Chris@909: 	if (index > 0) {
Chris@909: 		swapOptions(theSel, index-1, index);
Chris@909:   	theSel.selectedIndex = index-1;
Chris@909: 	}
Chris@909: }
Chris@909: 
Chris@909: function moveOptionDown(theSel) {
Chris@909: 	var index = theSel.selectedIndex;
Chris@909: 	if (index < theSel.length - 1) {
Chris@909: 		swapOptions(theSel, index, index+1);
Chris@909:   	theSel.selectedIndex = index+1;
Chris@909: 	}
Chris@909: }
Chris@909: 
Chris@909: function selectAllOptions(id)
Chris@909: {
Chris@909:   var select = $(id);
Chris@909:   for (var i=0; i<select.options.length; i++) {
Chris@909:     select.options[i].selected = true;
Chris@909:   }
Chris@909: }
Chris@909: