// start: mouseover script and image preloader
	
function msover(img,ref){
	document.images[img].src = ref;
}

function msout(img,ref){
	document.images[img].src = ref;
}
	
String.prototype.trim = function() {
a = this.replace(/^\s+/, '');
return a.replace(/\s+$/, '');
};

String.prototype.reverse=function(str){
	var newStr="";
	for (i=0;i<=str.length;i++) {
		newStr = str.charAt(i) + newStr;
	}
	return newStr;
}

String.prototype.replaceAll=function(haystack, needle, replacement){
	while(haystack.indexOf(needle)!=-1){
		haystack=haystack.replace(needle, " ");
	}
	return haystack;
}	

String.prototype.toProperCase = function(){
	return this.toLowerCase().replace(/^(.)|\s(.)/g, function($1) { return $1.toUpperCase(); });
};

document.getElementsByClassName = function(clsName){
	var retVal = new Array();
	var elements = document.getElementsByTagName("*");
	for(i = 0;i < elements.length;i++){
		if(elements[i].className.indexOf(" ") >= 0){
			var classes = elements[i].className.split(" ");
			for(var j = 0;j < classes.length;j++){
				if(classes[j] == clsName){
					retVal.push(elements[i]);
				}
			}
		}
		else if(elements[i].className == clsName)
			retVal.push(elements[i]);
		}
	return retVal;
};