Input prompt box text, mouse clicks, text disappears, mouse point outside, text appears

Input prompt box text, mouse clicks, text disappears, mouse point outside, text appears

Like some search box will display "here to search for things," the mouse click on the search box, those words are not, the mouse clicks on the page other places, the search box text appears again.

<input value= "Please enter the keyword" onfocus= "if (value = = ' Please enter the keyword ') {value = '} ' onblur= ' if (value = = ') {value= ' Please enter the keyword '} '/>

If replaced with the following code, when the mouse stretched past, the Tip box background color will change, the effect is better:

<input value= "Please enter the keyword" Onmouseo tutorial ver= "this.style.bordercolor= ' black '; this.style.backgroundcolor= ' Plum '"
Style= "Border-color:black; border-width:1px; "
onmouseout= "this.style.bordercolor= ' Black"; this.style.backgroundcolor= ' #ffffff ' "style=" border-width:1px; Border-color=black "onfocus=" if (value = = ' Please enter keyword ') {value = '} ' onblur= ' if (value = = ') {value= ' Please enter keyword '} '/>