How can I generate a unique JavaScript variable name from a JSF clientId? -

i want define javascript function every instance of jsf composite component.

for this, inside component, i'm trying like:

<h:outputscript> function myfunction_#{component.clientid}(day) {    //do instance specific stuff } </h:outputscript> 

specifically trying use function in richfaces calendar this:

<rich:calendar id="calendar" ... dayclassfunction="myfunction_#{component.clientid}"> 

but clientid doesn't contain characters valid in javascript variable names.

is there way calculate md5 hash or pseudo-unique clientid (or else!) inside jsf el expression?

i need instance-specific because return value relies on instance values , dayclassfunction attribute doesn't accept function takes clientid or likewise specific argument.

i've done before this:

window['#{cc.clientid}'] = {     myfunction1 : function() { ... },     myfunction2 : function() { ... } }; 

then call need with

dayclassfunction="window['#{cc.clientid}'].myfunction1()" 

this way scoped component. can add prefix client id never conflict other variable names on window scope.

can't think of character, allowed in client id, break javascript.