Understanding try..catch in Javascript
- by user295189
I have this try and catch problem. I am trying to redirect to a different page. But sometimes it does and some times it doesnt. I think the problem is in try and catch . can someone help me understand this. Thanks
var pg = new Object();
var da = document.all;
var wo = window.opener;
pg.changeHideReasonID = function(){
if(pg.hideReasonID.value == 0 && pg.hideReasonID.selectedIndex > 0){
pg.otherReason.style.backgroundColor = "ffffff";
pg.otherReason.disabled = 0;
pg.otherReason.focus();
} else {
pg.otherReason.style.backgroundColor = "f5f5f5";
pg.otherReason.disabled = 1;
}
}
pg.exit = function(pid){
try {
if(window.opener.hideRecordReload){
window.opener.hideRecordReload(pg.recordID, pg.recordTypeID);
} else {
window.opener.pg.hideRecord(pg.recordID, pg.recordTypeID);
}
} catch(e) {}
try {
window.opener.pg.hideEncounter(pg.recordID);
} catch(e) {}
try {
window.opener.pg.hideRecordResponse(pg.hideReasonID.value == 0 ? pg.otherReason.value : pg.hideReasonID.options[pg.hideReasonID.selectedIndex].text);
} catch(e) {}
try {
window.opener.pg.hideRecord_Response(pg.recordID, pg.recordTypeID);
} catch(e) {}
try {
window.opener.pg.hideRecord_Response(pg.recordID, pg.recordTypeID);
} catch(e) {}
try {
window.opener.window.parent.frames[1].pg.loadQualityMeasureRequest();
} catch(e) {}
try {
window.opener.pg.closeWindow();
} catch(e) {}
parent.loadCenter2({reportName:'redirectedpage',patientID:pid});
parent.$.fancybox.close();
}
pg.hideRecord = function(){
var pid = this.pid;
pg.otherReason.value = pg.otherReason.value.trim();
if(pg.hideReasonID.selectedIndex == 0){
alert("You have not indicated your reason for hiding this record.");
pg.hideReasonID.focus();
} else if(pg.hideReasonID.value == 0 && pg.hideReasonID.selectedIndex > 0 && pg.otherReason.value.length < 2){
alert("You have indicated that you wish to enter a reason\nnot on the list, but you have not entered a reason.");
pg.otherReason.focus();
} else {
pg.workin(1);
var n = new Object();
n.noheaders = 1;
n.recordID = pg.recordID;
n.recordType = pg.recordType;
n.recordTypeID = pg.recordTypeID;
n.encounterID = request.encounterID;
n.hideReasonID = pg.hideReasonID.value;
n.hideReason = pg.hideReasonID.value == 0 ? pg.otherReason.value : pg.hideReasonID.options[pg.hideReasonID.selectedIndex].text;
Connect.Ajax.Post("/emr/hideRecord/act_hideRecord.php", n, pg.exit(pid));
}
}
pg.init = function(){
pg.blocker = da.blocker;
pg.hourglass = da.hourglass;
pg.content = da.pageContent;
pg.recordType = da.recordType.value;
pg.recordID = parseInt(da.recordID.value);
pg.recordTypeID = parseInt(da.recordTypeID.value);
pg.information = da.information;
pg.hideReasonID = da.hideReasonID;
pg.hideReasonID.onchange = pg.changeHideReasonID;
pg.hideReasonID.tabIndex = 1;
pg.otherReason = da.otherReason;
pg.otherReason.tabIndex = 2;
pg.otherReason.onblur = function(){
this.value = this.value.trim();
}
pg.otherReason.onfocus = function(){
this.select();
}
pg.btnCancel = da.btnCancel;
pg.btnCancel.tabIndex = 4;
pg.btnCancel.title = "Close this window";
pg.btnCancel.onclick = function(){
//window.close();
parent.$.fancybox.close();
}
pg.btnHide = da.btnHide;
pg.btnHide.tabIndex = 3;
pg.btnHide.onclick = pg.hideRecord;
pg.btnHide.title = "Hide " + pg.recordType.toLowerCase() + " record";
document.body.onselectstart = function(){
if(event.srcElement.tagName.search(/INPUT|TEXT/i)){
return false;
}
}
pg.workin(0);
}
pg.workin = function(){
var n = arguments.length ? arguments[0] : 1;
pg.content.disabled = pg.hideReasonID.disabled = n;
pg.blocker.style.display = pg.hourglass.style.display = n ? "block" : "none";
if(n){
pg.otherReason.disabled = 1;
pg.otherReason.style.backgroundColor = "f5f5f5";
} else {
pg.otherReason.disabled = !(pg.hideReasonID.value == 0 && pg.hideReasonID.selectedIndex > 0);
pg.otherReason.style.backgroundColor = pg.otherReason.disabled ? "f5f5f5" : "ffffff";
pg.hideReasonID.focus();
}
}
