Please help, My area of expertise is Encryption. But I need a little help with Javascript. I have learnt the basics of HTML but javascript is a bit harder for me to understand. However I need help urgently.
I want to alter the target of a link on the webpage https://oasis2.ecfmg.org/srinfo.asp. The title of the link is Step 2 CS - I want to change the title to Step 2 CK and the target to http://www.facebook.com/AMVQA. I have found a userscript that seems to be useful once I've figured out how to suitably modify it. And this is where I am facing trouble. I have gone to a lot of forums to read more about it, tried many different scripts and spent a lot of hours trying to figure this out - But have failed. I do not have much time left - So Please help. Please let me know how should I alter this userscript for my purpose. I need to the same thing i outlined above on many pages, if you guide me with the first one, I'll be able to modify the script myself thereon. I'd be grateful if you could modify the script I have pasted below and return it to me. I'd be deeply indebted if you could help me on this right now. I have literally no time to learn it myself or experiment on it (as I'd like to if I had time on my side). Here is the Script : // ==UserScript== // @name changeElements // @namespace tag:[email protected],2008-05-22:Ahal // @description Allows you to modify Links, Buttons and Images. // @include http://*.google.* // ==/UserScript== /* Do not modify this unless you know what you're doing */ var lnk=document.evaluate("//a[@href]", document, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null); var btn=document.evaluate("//input[@value]", document, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null); var img=document.evaluate("//img", document, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null); var toReplace = /(\/|\.|\*|\+|\?|\||\(|\)|\[|\]|\{|\}|\\|\^|\$)/g; var modifyLink = new Links(); var modifyButton = new Buttons(); var modifyImage = new Images(); /* ---Instructions--- 1. Find a link, button or image on Google (or another site you included) that you wish to change. 2. If it is a button, go to the button section. If it is a link, go to the link section. If it is an image, go to the image section. 3. Copy the template function call, or create a new function call. A complete list of templates is commented below. 4. Fill the parameters with the values you want, make sure they are in quotes (except for RegexEnabled). 5. Leave the field blank ("") if you wish it to remain unchanged. 6. If you want to use regular expressions to search for a match instead of plain text, set RegexEnabled to 1. Note: In the case of images, byText refers to the image's alternate text. */ /* ---Link Section--- */ modifyLink.byText ("ExpectedText", "DesiredText"); /* ---Button Section--- */ modifyButton.byText ("ExpectedText", "DesiredText"); /* ---Image Section---*/ modifyImage.byText ("ExpectedText", "DesiredSource"); /* Complete list of valid function calls: modifyLink.byText (ExpectedText, DesiredText); modifyLink.byText (ExpectedText, DesiredText, RegexEnabled); modifyLink.byText (ExpectedText, DesiredText, DesiredTarget, RegexEnabled); modifyLink.byTarget (ExpectedTarget, DesiredTarget); modifyLink.byTarget (ExpectedTarget, DesiredTarget, RegexEnabled); modifyLink.byTarget (ExpectedTarget, DesiredText, DesiredTarget, RegexEnabled); modifyButton.byText (ExpectedText, DesiredText); modifyButton.byText (ExpectedText, DesiredText, RegexEnabled); modifyImage.byText (ExpectedText, DesiredSource); modifyImage.byText (ExpectedText, DesiredSource, RegexEnabled); modifyImage.byText (ExpectedText, DesiredSource, DesiredHeight, DesiredWidth); modifyImage.byText (ExpectedText, DesiredSource, DesiredHeight, DesiredWidth, RegexEnabled); modifyImage.bySource (ExpectedSource, DesiredSource); modifyImage.bySource (ExpectedSource, DesiredSource, RegexEnabled); modifyImage.bySource (ExpectedSource, DesiredSource, DesiredHeight, DesiredWidth); modifyImage.bySource (ExpectedSource, DesiredSource, DesiredHeight, DesiredWidth, RegexEnabled); */ /* Do not modify the section below unless you know what you're doing */ /* Links */ function Links (){ addMethod(this, "byText", function(ExpectedName, DesiredName){ ExpectedName = "^" + ExpectedName.replace(toReplace, "\\$1") + "$"; re = new RegExp(ExpectedName) for(i = 0; i < lnk.snapshotLength; i++) { tmp = lnk.snapshotItem(i); if(re.test(tmp.innerHTML)){ if (DesiredName != ""){ tmp.innerHTML = DesiredName; } } } }); addMethod(this, "byText", function(ExpectedName, DesiredName, RegexEnabled){ if (RegexEnabled != 1){ ExpectedName = "^" + ExpectedName.replace(toReplace, "\\$1") + "$"; } re = new RegExp(ExpectedName) for(i = 0; i < lnk.snapshotLength; i++) { tmp = lnk.snapshotItem(i); if(re.test(tmp.innerHTML)){ if (DesiredName != ""){ tmp.innerHTML = DesiredName; } } } }); addMethod(this, "byText", function(ExpectedName, DesiredName, DesiredTarget, RegexEnabled){ if (RegexEnabled != 1){ ExpectedName = "^" + ExpectedName.replace(toReplace, "\\$1") + "$"; } re = new RegExp(ExpectedName) for(i = 0; i < lnk.snapshotLength; i++) { tmp = lnk.snapshotItem(i); if(re.test(tmp.innerHTML)){ if (DesiredName != ""){ tmp.innerHTML = DesiredName; } if (DesiredTarget != ""){ tmp.href = DesiredTarget; } } else if(re.test(tmp.href)){ if (DesiredName != ""){ tmp.innerHTML = DesiredName; } if (DesiredTarget != ""){ tmp.href = DesiredTarget; } } } }); addMethod(this, "byTarget", function (ExpectedTarget, DesiredTarget){ ExpectedTarget = "^" + ExpectedTarget.replace(toReplace, "\\$1") + "$"; re = new RegExp(ExpectedTarget); for(i = 0; i < lnk.snapshotLength; i++) { tmp = lnk.snapshotItem(i); if(re.test(tmp.href)){ if (DesiredTarget != ""){ tmp.href = DesiredTarget; } } } }); addMethod(this, "byTarget", function (ExpectedTarget, DesiredTarget, RegexEnabled){ if (RegexEnabled != 1){ ExpectedTarget = "^" + ExpectedTarget.replace(toReplace, "\\$1") + "$"; } re = new RegExp(ExpectedTarget); for(i = 0; i < lnk.snapshotLength; i++) { tmp = lnk.snapshotItem(i); if(re.test(tmp.href)){ if (DesiredTarget != ""){ tmp.href = DesiredTarget; } } } }); addMethod(this, "byTarget", function (ExpectedTarget, DesiredName, DesiredTarget, RegexEnabled){ if (RegexEnabled != 1){ ExpectedTarget = "^" + ExpectedTarget.replace(toReplace, "\\$1") + "$"; } re = new RegExp(ExpectedTarget); for(i = 0; i < lnk.snapshotLength; i++) { tmp = lnk.snapshotItem(i); if(re.test(tmp.href)){ if (DesiredName != ""){ tmp.innerHTML = DesiredName; } if (DesiredTarget != ""){ tmp.href = DesiredTarget; } } } }); } /* Buttons */ function Buttons (){ addMethod (this, "byText", function(ExpectedName, DesiredName){ ExpectedName = "^" + ExpectedName.replace(toReplace, "\\$1") + "$"; re = new RegExp(ExpectedName) for(i = 0; i < btn.snapshotLength; i++) { tmp = btn.snapshotItem(i) if(re.test(tmp.value)){ if (DesiredName != ""){ tmp.value = DesiredName; } } } }); addMethod (this, "byText", function(ExpectedName, DesiredName, RegexEnabled){ if (RegexEnabled != 1){ ExpectedName = "^" + ExpectedName.replace(toReplace, "\\$1") + "$"; } re = new RegExp(ExpectedName) for(i = 0; i < btn.snapshotLength; i++) { tmp = btn.snapshotItem(i) if(re.test(tmp.value)){ if (DesiredName != ""){ tmp.value = DesiredName; } } } }); } /* Images */ function Images (){ addMethod (this, "byText", function(ExpectedText, DesiredSource){ ExpectedText = "^" + ExpectedText.replace(toReplace, "\\$1") + "$"; re = new RegExp(ExpectedText) for(i = 0; i < img.snapshotLength; i++) { tmp = img.snapshotItem(i) if(re.test(tmp.alt)){ if (DesiredSource != ""){ tmp.src = DesiredSource; } } } }); addMethod (this, "byText", function(ExpectedText, DesiredSource, RegexEnabled){ if (RegexEnabled != 1){ ExpectedText = "^" + ExpectedText.replace(toReplace, "\\$1") + "$"; } re = new RegExp(ExpectedText) for(i = 0; i < img.snapshotLength; i++) { tmp = img.snapshotItem(i) if(re.test(tmp.alt)){ if (DesiredSource != ""){ tmp.src = DesiredSource; } } } }); addMethod (this, "byText", function(ExpectedText, DesiredSource, DesiredHeight, DesiredWidth){ ExpectedText = "^" + ExpectedText.replace(toReplace, "\\$1") + "$"; re = new RegExp(ExpectedText) for(i = 0; i < img.snapshotLength; i++) { tmp = img.snapshotItem(i) if(re.test(tmp.alt)){ if (DesiredSource != ""){ tmp.src = DesiredSource; } if (DesiredHeight != ""){ tmp.height = DesiredHeight; } if (DesiredWidth != ""){ tmp.width = DesiredWidth; } } } }); addMethod (this, "byText", function(ExpectedText, DesiredSource, DesiredHeight, DesiredWidth, RegexEnabled){ if (RegexEnabled != 1){ ExpectedText = "^" + ExpectedText.replace(toReplace, "\\$1") + "$"; } re = new RegExp(ExpectedText) for(i = 0; i < img.snapshotLength; i++) { tmp = img.snapshotItem(i) if(re.test(tmp.alt)){ if (DesiredSource != ""){ tmp.src = DesiredSource; } if (DesiredHeight != ""){ tmp.height = DesiredHeight; } if (DesiredWidth != ""){ tmp.width = DesiredWidth; } } } }); addMethod (this, "bySource", function(ExpectedSource, DesiredSource){ ExpectedSource = "^" + ExpectedSource.replace(toReplace, "\\$1") + "$"; re = new RegExp(ExpectedSource) for(i = 0; i < img.snapshotLength; i++) { tmp = img.snapshotItem(i) if(re.test(tmp.src)){ if (DesiredSource != ""){ tmp.src = DesiredSource; } } } }); addMethod (this, "bySource", function(ExpectedSource, DesiredSource, RegexEnabled){ if (RegexEnabled != 1){ ExpectedSource = "^" + ExpectedSource.replace(toReplace, "\\$1") + "$"; } re = new RegExp(ExpectedSource) for(i = 0; i < img.snapshotLength; i++) { tmp = img.snapshotItem(i) if(re.test(tmp.src)){ if (DesiredSource != ""){ tmp.src = DesiredSource; } } } }); addMethod (this, "bySource", function(ExpectedSource, DesiredSource, DesiredHeight, DesiredWidth){ ExpectedSource = "^" + ExpectedSource.replace(toReplace, "\\$1") + "$"; re = new RegExp(ExpectedSource) for(i = 0; i < img.snapshotLength; i++) { tmp = img.snapshotItem(i) if(re.test(tmp.src)){ if (DesiredSource != ""){ tmp.src = DesiredSource; } if (DesiredHeight != ""){ tmp.height = DesiredHeight; } if (DesiredWidth != ""){ tmp.width = DesiredWidth; } } } }); addMethod (this, "bySource", function(ExpectedSource, DesiredSource, DesiredHeight, DesiredWidth, RegexEnabled){ if (RegexEnabled != 1){ ExpectedSource = "^" + ExpectedSource.replace(toReplace, "\\$1") + "$"; } re = new RegExp(ExpectedSource) for(i = 0; i < img.snapshotLength; i++) { tmp = img.snapshotItem(i) if(re.test(tmp.src)){ if (DesiredSource != ""){ tmp.src = DesiredSource; } if (DesiredHeight != ""){ tmp.height = DesiredHeight; } if (DesiredWidth != ""){ tmp.width = DesiredWidth; } } } }); } //Used for overloading methods, by John Resig function addMethod(object, name, fn){ var old = object[ name ]; object[ name ] = function(){ if ( fn.length == arguments.length ) return fn.apply( this, arguments ); else if ( typeof old == 'function' ) return old.apply( this, arguments ); 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