javascript regex for eliminating punctuations array

I made an array of punctuation which I want to eliminate from the string:

		/*to eliminate the punctuations*/
		var punctuations = new Array();
		punctuations[0] = ":";
		punctuations[1] = ";";
		punctuations[2] = ",";
		punctuations[3] = ".";
		punctuations[4] = "?";
		punctuations[5] = "(";
		punctuations[6] = ")";
		var eliminate = "";
		var myOldString = searchChapWords[i].innerHTML;
		for(punct=0; punct<punctuations.length; punct++){
			var myNewString = myOldString.replace(punctuations[punct], eliminate);
		}
		document.getElementById('keyword0').innerHTML = "Old string =  " + myOldString;
		document.getElementById('keyword1').innerHTML = "<br />New string = " + myNewString
		/*end*/

Code (markup):

What's the correct way of doing it?

 

This sounds like a job for a regular expression. I would replace your punctuations array, your eliminate string, and the for loop with this one line of code.

var myNewString=myOldString.replace(/[:;,.?()]/g,'');