function isAllSpaces(myStr){
		while (myStr.substring(0, 1) == " ") {
			myStr = myStr.substring(1, myStr.length);
		}
	
		if(myStr == ""){
			return true;
		}
		return false;
	} // end fn isAllSpaces
	

	function isValidPhone(myNumStr) {
		var myStr = '0123456789-()+-, ';
		var myChar;
		for (i=0; i< myNumStr.length; i++) {
			myChar = myNumStr.substring(i,i+1);
			if (myStr.indexOf(myChar) == -1) {
				//alert("Please enter valid number.");
				return false;
			}
		}
		return true;
	} // end fn isValidPhone


	function isValidPrice(myNumStr) {
		var myStr = '0123456789.';
		var myChar;
		var myInt = 0;
		for (i=0; i< myNumStr.length; i++) {
			myChar = myNumStr.substring(i,i+1);
			if (myStr.indexOf(myChar) == -1) {
				//alert("Please enter valid number.");
				return false;
			}
		}
		
		for (i=0; i< myNumStr.length; i++) {
			myChar = myNumStr.substring(i,i+1);
		
	         	if (myChar == '.'){
			
		             myInt=myInt + 1;
            
				}
				
		if (myInt > 1 ) {
   
			    return false;
			 }

		}

		return true;
	} // end fn isValidPrice


function isEmail(s){
	if(s.length == 0)
		return true;
	if	(	(s.indexOf("@") <= 0) || 
			(s.indexOf("@") == s.length -1) || 
			(s.indexOf("@") != s.lastIndexOf("@")) || 
			(s.indexOf(".") <= 0) || 
			(s.indexOf(" ") > -1) || 
			(s.lastIndexOf(".") == s.length -1) ||
			(s.lastIndexOf(".") < s.indexOf("@")) ||
			(s.indexOf("..") != -1) ||
			(isSpecialChar(s)) ||
			(s.charAt(s.indexOf("@") + 1) == ".") ||
			(s.charAt(s.indexOf("@") - 1) == ".")			
		) return false;
	else return true;
} //end fn isEmail

	function isValidNo(myNumStr) {
		var myStr = '0123456789-';
		var myChar;
		for (i=0; i< myNumStr.length; i++) {
			myChar = myNumStr.substring(i,i+1);
			if (myStr.indexOf(myChar) == -1) {
			//	alert("Please enter valid number.");
				return false;
			}
		}
		return true;
	} // end fn isValidNo
	
		function isImageFileValid(myStr)
	{
		//This function currently permits following files .jpeg, jpg, gif.
		
		//----Input: MyStr(Name of the file with extension)
		
		//----Output:either true or false depending upon the file name.
		
		i = myStr.lastIndexOf(".");
		myStr = myStr.substring(i,myStr.length);
				
		if (myStr.length==5)
		{		 
			if (myStr.lastIndexOf(".jpeg") != -1) 
				return true;
		}
		
		else if (myStr.length==4)
		{
			if (myStr.lastIndexOf(".jpg") != -1)
				return true
		}
		else
			return false;
		
	}//end of isImageFileValid