function doRollovers( baseClass, overClass ) {
	
		  if (!document.getElementsByTagName) return false;
		  var links = document.getElementsByTagName("div");
		  for (var i=0; i < links.length; i++) {
			if (links[i].className.match( baseClass )) {
	
			  links[i].onmouseover = function() {
//				 alert( baseClass + ' ' + overClass );
				//this.className='project_block project_block_over';
				this.className= baseClass + ' ' + overClass ;
				
			  }
			  
			  links[i].onmouseout = function() {
				this.className= baseClass;
			  }
			  
			  links[i].onclick = function() {
				  
				  for( var n = 0; n < this.childNodes.length; n++ ){
					  if( this.childNodes[ n ] . tagName  == "A" ){
						  window.location = this.childNodes[ n ] . href;
						  return false;
					  }
				  }
				  
				 
			  }
			  
			  
			}
		  }
		}