Array: Find

Array.prototype._find = function(str,matchCase,dive) {
	/*
	*  This returns the index of a find in an array
	*  Note: Finds only ONE EXACT occurrence. Use _findAll for all occurrences.
	*/
 
	var ary_length = this.length;
	if(typeof(str)!="string") matchCase = true;
 
	for (var i:Number=0;i < ary_length; ++i) {
		if( matchCase == true ){
			if( dive ) { 
				if( this[i][dive] == str ) return i; 
			}else{
				if( this[i] == str ) return i;
			}
		}else{
			var strL = str.toLowerCase();
			if( dive ) {  
				if( this[i][dive].toLowerCase() == strL ) return i; 
			}else{
				if( this[i].toLowerCase() == strL.toLowerCase() ) return i;
			}
		}
	}
	return false;
}// End Function