/**************************************************************   result.php by Milfson (milf@milfcz.com) 17.04.2004Milfson added preselect(parameters...) to pre-populate dropdowns with default values.Thanks for the code! - Brent. ***************************************************************/// constantsvar noValue = '-99';// default valuesvar IDMake = noValue;var IDModel = noValue;var IDOptions = noValue;//selects disabled true/falsevar boolEnabled = true;// globalsvar curOption = new Array();var isLoaded = new Array();function initLists(){  // initialize lists  emptyList( 'lstMake' );  emptyList( 'lstModel');  emptyList( 'lstOptions' );  jsrsExecute( 'select_rs.php', cbFillMake, 'makeList');}function preselect(idMake,idModel,idOptions,selectable){  boolEnabled = selectable;  IDMake = idMake;  IDModel = idModel;  IDOptions = idOptions;  initLists();}function lstMake_onChange(){  var val = this.options[this.selectedIndex].value;    IDMake = val;    IDModel = noValue;    IDOptions = noValue;  if(val == noValue){    selectOption( this.name, curOption[this.name] )  } else {    curOption[this.name] = val;    // init dependent lists    emptyList( 'lstModel' );    emptyList( 'lstOptions');    window.status = 'Loading Model Selections...';    jsrsExecute( 'select_rs.php', cbFillModel, 'modelList', val);  }  }function lstModel_onChange(){  var val = this.options[this.selectedIndex].value;  if(val == noValue){    selectOption( this.name, curOption[this.name] )  } else {    curOption[this.name] = val;    emptyList( 'lstOptions');    window.status = 'Loading Options Selections...';    jsrsExecute( 'select_rs.php', cbFillOptions, 'optionsList', val);  }  }function lstOptions_onChange(){  var val = this.options[this.selectedIndex].value;  IDOptions = val;  if(val == noValue){    selectOption( this.name, curOption[this.name] )  } else {    var msg = "You have selected: \n\n";    msg += this.form.lstMake.options[this.form.lstMake.selectedIndex].text + "\n";    msg += this.form.lstModel.options[this.form.lstModel.selectedIndex].text + "\n";    msg += this.options[this.selectedIndex].text + "\n";    //alert (msg);        if(boolEnabled){    document.getElementById('cmdSubmit').disabled="";    document.getElementById('show').style.backgroundColor="#FFCC99";    }      }}function cbFillMake ( strMakes ){   window.status = '';  fillList( 'lstMake',  strMakes );   if(IDMake != noValue){    jsrsExecute( 'select_rs.php', cbFillModel, 'modelList', ''+IDMake+'');  }}function cbFillModel ( strModels ){   // callback for dependent listbox  window.status = '';  fillList( 'lstModel',  strModels );   if(IDModel != noValue){    jsrsExecute( 'select_rs.php', cbFillOptions, 'optionsList', ''+IDModel+'');  }}function cbFillOptions( strOptions ){   // callback for dependent listbox  window.status = '';  fillList( 'lstOptions', strOptions ); }function fillList( listName, strOptions ){  // fill any list with options  emptyList( listName );    // always insert selection prompt  var lst = document.forms['QForm'][listName];  lst.disabled = true;  lst.options[0] = new Option('=>  Elige una opcion  <=', noValue);    // options in form "value~displaytext|value~displaytext|..."  var aOptionPairs = strOptions.split('|');  for( var i = 0; i < aOptionPairs.length; i++ ){    if (aOptionPairs[i].indexOf('~') != -1) {      var aOptions = aOptionPairs[i].split('~');      lst.options[i + 1] = new Option(aOptions[1], aOptions[0]);    }    }  switch(listName){  	case 'lstMake':		  ID = IDMake;		break;  	case 'lstModel':		  ID = IDModel;		break;	case 'lstOptions':		  ID = IDOptions;		break;	}  // init to no value  selectOption( listName, ID );  isLoaded[listName] = true;  lst.disabled = !boolEnabled;  lst.onchange = eval( listName + "_onChange" );  // eval( "document.forms['QForm']['" + listName + "'].onchange=" + listName + "_onChange;" );}function emptyList( listName ){  var lst = document.forms['QForm'][listName];  lst.options.length = 0;  lst.onchange = null;  lst.disabled = !boolEnabled;  isLoaded[listName] = false;  curOption[listName] = noValue;}function selectOption( listName, optionVal ){  // set list selection to option based on value  var lst = document.forms['QForm'][listName];  for( var i = 0; i< lst.options.length; i++ ){    if( lst.options[i].value == optionVal ){      lst.selectedIndex = i;      curOption[listName] = optionVal;      return;    }    }}