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  1. #1
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    string building and hidden form fields

    Hello,

    I'm trying to get this script to work, but my deep rooted PHP syntax is messing my JS up.

    I have a flash file that calls this JS function. It basically adds a number to a comma separated string. this works fine.
    Code:
    var select = "";
    function selectCounty (cid){ select = cid + "," + select; }
    The flash also calls this function to remove a value from the string. The removeVal() function works. though, the *select* variable is not reforming into a string. I'm missing how to then put the array into a form that this is part of.
    Code:
    function unSelectCounty (cid){ 
    	// split the *select* string into an array
    	var select_array = select.split(/,/);
    
    	// remove *cid* value from array
    	unselect = removeVal(select_array, cid);
    
    	// reset *select* var
    	select = "";
    	for (i=0;i<unselect.length;i++){ if (unselect[i] != ''){ select = unselect[i] + "," + select; } }
    }
    function removeVal(arr, valToRemove){
    	// Normalize to a string like !val!!val!!val!
    	var s = '!' + arr.join('!!') + '!';
    	// Remove targeted values with delimiters
    	s = s.replace(new RegExp('!' + valToRemove + '!', 'g'), '');
    	// Remove delimiter added to end in step 1
    	s = s.replace(/^!/, '');
    	// Remove delimiter added to start in step 1
    	s = s.replace(/!$/, '');
    	// Convert to array
    	return s.split('!!');
    }
    Please help with these two problems-

    1) i cant get the *select* string in unSelectCounty() to reform correctly.
    2) i am unsure what to write so that the value of *select* is passed in POST form array. it can accept it either as an array or a string.

    Thanks.

  2. #2
    SitePoint Addict
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    ok i got a little farther, updated this function to -
    Code:
    	function unSelectCounty (cid){ 
    		// split the *select* string into an array
    		select_array = select.split(/,/);
    		// remove *cid* value from array
    		unselect = removeVal(select_array, cid);
    		// reset *select* var
    		select = unselect.join(',');
    	}
    I still need to know about how to attach my *select* var to a hidden form field. this can be passed as a string.


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