function selectMe(id) { input = document.getElementById(id); // simulate click to invoke listeners! input.click(); // input.checked = true; } /* ############################################################## All these functions are used for the javascript implementation of the closedended ranking question ##############################################################*/ var alternatives_box = "ranking_box"; /** Move an element from the box with all options to the one with those where the ranking was done */ function addClosedRanking() { allBox = document.getElementById("all"); allIdx = allBox.selectedIndex; allVal = allBox.options[allIdx].value; allText = allBox.options[allIdx].text; altBox = document.getElementById(alternatives_box); newOpt = new Option((altBox.length+1) + ". " +allText, allVal, false, true); altBox[altBox.length] = newOpt; allBox[allIdx] = null; doRenumbering(); } /** move the items back to the box with all items */ function removeClosedRanking() { var allBox = document.getElementById(alternatives_box); var allIdx = allBox.selectedIndex; var allVal = allBox.options[allIdx].value; var allText = allBox.options[allIdx].text; var altBox = document.getElementById("all"); var strWithoutNr = removeNumbering(allText); var newOpt = new Option(strWithoutNr, allVal, false, true); altBox[altBox.length] = newOpt; allBox[allIdx] = null; doRenumbering(); } function moveUpClosedRanking(reNumber) { var box = document.getElementById(alternatives_box); var idx = box.selectedIndex; swapOptions(box,idx,idx-1); if (reNumber) { doRenumbering(); } else { onlyAssignInputField(); } } function moveDownClosedRanking(reNumber) { var box = document.getElementById(alternatives_box); var idx = box.selectedIndex; swapOptions(box,idx,idx+1); if (reNumber) { doRenumbering(); } else { onlyAssignInputField(); } } function onlyAssignInputField() { var box = document.getElementById(alternatives_box); for ( i = 0; i < box.length; i = i + 1) { var in_field = document.getElementById("altrank_" + (i+1)); in_field.value = box[i].value; } } function doRenumbering() { var box = document.getElementById(alternatives_box); for ( i = 0; i < box.length; i = i + 1) { txtNoNmb = removeNumbering(box[i].text); box[i].text = (i+1) + ". " + txtNoNmb; in_field = document.getElementById("altrank_" + (i+1)); in_field.value = box[i].value; } } /* remove the numbering of a string */ function removeNumbering(txt) { return txt.substr(txt.indexOf(".")+1); } // ------------------------------------------------------------------- // swapOptions(select_object,option1,option2) // Swap positions of two options in a select list // ------------------------------------------------------------------- function swapOptions(obj,i,j) { var o = obj.options; var i_selected = o[i].selected; var j_selected = o[j].selected; var temp = new Option(o[i].text, o[i].value, o[i].defaultSelected, o[i].selected); var temp2= new Option(o[j].text, o[j].value, o[j].defaultSelected, o[j].selected); o[i] = temp2; o[j] = temp; o[i].selected = j_selected; o[j].selected = i_selected; } /* ############################################################## General functions for the filling out area ##############################################################*/ var timeStart; function loadSteps() { max(); timeStart = new Date().getTime(); } /* Maximize the current browser window usage: */ function max() { w_height=screen.height; w_width=screen.width; window.moveTo(0,0); window.resizeTo(w_width,w_height); } /* open a new window so that the back-button has no effect as taken from http://www.htmlgoodies.com/tutorials/buttons/article.php/3478911 usage: Click to go to a new page currently not in use */ function goNewWin(relUrl) { window.open(relUrl,'TheNewpop','toolbar=1, location=1,directories=1,status=1,menubar=1, scrollbars=1,resizable=1'); self.close(); } /* This function is called when the page is unloaded */ function unloadMe() { //trackMe(); //history.go(1); }