Some KnockOut js data binding helper, to work a round a problem when setting values on in input fields via jQuery and knockout JS databinding

gistfile1.js

/**
 * hasKeyExists
 *
 * Searches for a hierarchical combination of keys in a json object 
 *
 * @{Object} JSON Object
 * @{String} path seperated with "." for example level1.level2.foo
 * @return {Boolean}
 */
var hashKeyExists = function(obj,path){

	var keys = path.split('.');
	
	var keyExists = function(obj,keyList){

		var cur = keyList.shift();
	
		if(obj.hasOwnProperty(cur)){
			if(keyList.length<=0){
				return true;
			}else{
				return keyExists(obj[cur],keyList);
			}
		}else{
			return false;
		}	
	};
	
	if(obj && typeof obj == "object" && keys.length>0){
		return keyExists(obj,keys);
	}else{
		return false;
	}
}

/**
 * getBindingPath
 * 
 * Returns the name of a knockout js data binding
 * 
 * @elem {Mixed} jQuery selector sring or reference to a DOM node
 * @return {Mixed} Undefined || String
 */
var getBindingPath = function(elem) {

	var bindingVal = jQuery(elem).data('bind');
	if(bindingVal!==undefined && bindingVal.indexOf(':')!=-1) {
	
		var tmpList = bindingVal.split(':');
		
		if(tmpList.length==2) {
			return tmpList[1];
		} else {
			return undefined;
		}
	
	} else {
		return undefined;
	}
}

/**
 * setBindingValue
 *
 * @param {Object} Binding store
 * @param {Mixed} elem jQuery selector or dom reference where data binding exists 
 * @param {value} value to sed for the data binding
 * @return {Boolean}
 */
var setBindingValue = function(store,elem,value) {
	
		var path = getBindingPath(elem);
		
		if(hashKeyExists(ramonVM,path)) {

			var recuVal = function(obj,keyList,val) {
			
				var cur = keyList.shift();
				
				if(obj.hasOwnProperty(cur)) {
					
					if(keyList.length<=0) {
					
						if(typeof obj[cur] == 'function') {
							obj[cur](val);
						} else {
							obj[cur] = val;
						}
						
						return true;
					} else {
						return recuVal(obj[cur],keyList,val);
					}
				
				} else {
					return false;
				}
			}
			
			return recuVal(store,path.split('.'),value)
		
		} else {
			return false;
		}	
}