startList = function() {
	
	if( document.getElementById ) {
	
		thehead = document.getElementById("header");

		var iRandSeed = Math.random();

		if( iRandSeed < 0.26 )
			thehead.className = "main_content_area_head1";
		else if( iRandSeed > 0.25 && iRandSeed < 0.51 )
			thehead.className = "main_content_area_head2";
		else if( iRandSeed > 0.5 && iRandSeed < 0.76 )
			thehead.className = "main_content_area_head3";
		else
			thehead.className = "main_content_area_head4"; 

//		thehead.className = "main_content_area_sale";

		navRoot = document.getElementById("nav");
		for (i=0; i<navRoot.childNodes.length; i++) {

			node = navRoot.childNodes[i];
			
			if (node.nodeName=="LI") {

				node.onmouseover=function() {
					this.className+=" over";
				}

  				node.onmouseout=function() {
  					this.className=this.className.replace(" over", "");
   				}
   				
   			}  			
  		}	 		
 		
 	}
}
window.onload=startList;