addLoadEvent(
							function(){
								var defaultValClear = function defaultValClear(){ if(this.value==this.name){this.value='';} };
								var defaultValSet = function defaultValSet(){ if(this.value==''){this.value= this.defaultValue;} };

								document.getElementById('username').onfocus = onfocus_clear;
								document.getElementById('username').onblur = onblur_clear;
							});